Take your box cake mix to the next level with this easy recipe! A few simple additions make it extra moist and delicious.
Alright, *almost* scratch cake is a bit of a stretch. It’s mostly a box cake with stuff added in to make it even better.
Some bakers scoff at box mixes, think it’s sacrilege and only bake from scratch. I’m a whatever-works-for-you kinda baker and sometimes it’s just easier to whip out a box.
How to Make Box Cake Better
Adding a few simple ingredients makes a world of difference. Trust me you will never go back to a plain old box cake mix ever again!
Here’s what you’ll need:
box cake mix
all-purpose flour
sugar
salt
large eggs
water (or milk)
vegetable oil
vanilla
sour cream
The sour cream is the secret ingredient I think that makes this doctored box mix extra moist and flavourful.
I recommend using full-fat sour cream because really, we’re not about saving calories at this point, right?
Boxed Cake Mix Recipe
Making this cake is just as simple as any box mix, just with a couple of other ingredients. To make it all you need to do is:
whisk the dry ingredients together
add the wet ingredients
mix on low until combined
This recipe works great for two 8″ cake pans or three 6″ pans. It can be scaled up for larger pans though too. I use this site as a guideline when I’m scaling recipes up or down.
I like to use Homemade Cake Release on my pans and line them with parchment to make sure the cakes come out perfect every time.
I also use Baking Strips around the sides of my cake pans to make sure the cakes bake perfectly flat and don’t require any trimming (no wasted cake scraps!).
If you’d like to make your cake extra moist (or if you’re worried you’ve over baked it) you can add some Simple Syrup to the cooled cake layers. I recommend trimming a bit of the top crust first so the syrup really soaks into the cakes.
These days I mostly bake from scratch, but I used to use this recipe all the time when I was focussing on cake decorating. It bakes up a very sturdy and delicious cake!
I’ve yet to recreate the delicious flavour and texture of a classic vanilla box mix cake though. My Vanilla Cake recipe comes close, but it’s not quite the same. It is delicious though too, so you should try it if you haven’t!
I really like this recipe because it makes the box mixes a little more dense and super moist. This recipe is GREAT for a cake that will be decorated, stacked, etc. as the cakes have really good structural integrity.
This recipe makes two 8″ or three 6″ cake pans. You can use two 9″ as well but the layers will be thinner (reduce baking time accordingly).
To make cupcakes, all you need to do is reduce the baking time. Start checking at 15mins or so. The recipe should make about 24 cupcakes depending on size.
You can bake it in a 9×13 pan. Baking time will be slightly shorter.
You can bake it in a Bundt pan as well but you’ll need to increase the baking time.
For all other conversions, I use this site as a guideline.
Baking time will vary if you change the pan size. Every oven varies so I can’t say for certain what you’ll need to adjust it to. Be sure to check on the cake as it’s baking.
Will This Work With Any Box Cake Mix?
I’ve only used this method with yellow/white cake mixes, but it should work just fine with any kind of box mix.
For chocolate cake mixes, instead of adding 1 cup flour, you can add 3/4 cup flour and 1/4 cup cocoa powder if you like.
For a pure white cake, use a white cake mix and 5 egg whites in place of 3 whole eggs.
For box mixes, my go-to’s are Betty Crocker and Duncan Hines. The French Vanilla flavour is my favourite.
You can easily add some sprinkles to make this a funfetti cake instead, but be sure to use either jimmies or confetti as the small round nonpareils will bleed into the batter.
Other Tips for making this Doctored Cake Mix:
Do not also use the ingredients listed on the back of the box mix. Only the components in the recipe.
Be sure to use room temperature ingredients as this will yield the best results.
Use full-fat sour cream for best results. Yogurt is a good substitute as well.
Learn how to keep your cakes moist using Simple Syrup.
To help ensure your cake layers bake up nice and flat, check out my Flat Top Cakes post!
Add wet ingredients and mix until combined. I use my KitchenAid on low for 2 minutes but you can also do this by hand.
Divide the batter between the pans and bake for approximately 50 minutes.
Cool in pans on wire rack for 10mins, then turn cakes out onto wire racks to cool completely.
Notes
*I use French Vanilla, but you can use any yellow/white cake mix for this. I haven't tried with other kinds, but I imagine it would yield similar, delicious results.
The nutritional information and metric conversions are calculated automatically. I cannot guarantee the accuracy of this data. If this is important to you, please verify with your favorite nutrition calculator and/or metric conversion tool.
Originally published on Oct 10, 2014
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Hi Olivia ! I have my daughters birthday coming up and wanted to make this version of boxed upgraded cake! But for 15 people would you say a 7 inch 2 or 3 layer cake is enough ! (We don’t mind leftovers!!) or best to make an 8inch 2 layer cake ?
Hi Hemangi! The recipe as is, in two 8″ layers feeds 12 generously, so I think you could squeeze 15 out of it. Otherwise, I’d increase the recipe, but since it uses a box mix it would be easiest to double it. That would mean a lot of leftovers though! But you can freeze those 🙂
I used this recipe as the starting point for making the cakes for my wedding a few years ago, and I still use it every time I bake a birthday cake. Thank you for sharing!
Did this recipe with a box of strawberry cake mix. It was the best box-mix cake I’d ever had. Thank you for sharing this with the world. Im bookmarking this for all future cake making! Cheers!
Hello there! Can I just use one 9″ cake pan for this recipe and bake them in the oven? Also, can I use whole milk (or any types of milk) instead of just using water?? Thanks a lot!
I loved this with the Betty Crocker Yellow cake mix. I’m going to try this with Neapolitan cupcakes tonight. (half yellow half chocolate with strawberry buttercream) I sometimes find chocolate box mixes are not chocolaty enough, could a tablespoon of unsweetened cocoa powder be added?
Can I substitute milk (specifically coconut milk) instead of using water? Would it be the same measurement?? Also, can I reduce the amount of flour since I am going to add Purple Yam (Ube) Powder to the recipe to turn it into an ube cake??
Hi Zeah! You should be able to substitute almost any liquid, so that will be fine. Same measurement. I haven’t tried reducing/replacing some of the flour myself — how much were you planning to swap? I haven’t baked with Ube before, would you typically replace flour when adding it to a recipe?
Oh, thanks a lot! Maybe instead of reducing the flour then add ube powder, I will just retain the amount in the recipe and add a generous amount of ube. By the way, Stay Safe and Have a Nice Day!
If you’re adding a lot of the powder you may need to reduce the flour so the batter isn’t too thick and the cake isn’t too dry/dense. It may take some experimenting!
Momsays
Did you make this with ube? If so, how was it?
LEDsays
Your recipes are killer. I’ve done almost all of them on your site and this one was amazing.
The only thing I did differently was to reduce the sugar to 3/4 (next time i’ll do 1/2) and up the sour cream to (270). Thank you Olivia!
As cupcakes, I’m not sure if I’m doing something wrong. I knew I wanted to make cupcakes with this so I used same batter to bake cupcakes. The cake was stuck to the liners.
I just tried again today – hoping it was a flux the first time. Same thing though. What might I be doing wrong?
I used coconut oil to grease a non stick cupcake pan instead of paper liners. Baked about 20-23 min. and turned out great. They slipped right out after cooling 10 minutes. Everyone loved them.
Hey! I’m using your recipe for a Devil’s Food cake for my grandma’s birthday tomorrow! I’m using a 13’ by 9’ cake pan, not round pans. Should the cake still release from the pan okay? I don’t want them to fall apart!
Hi Kierstyn! That should be fine as long as you properly prepare the pan. I recommend using Homemade Cake Release (https://livforcake.com/homemade-cake-release/) and lining the bottom with parchment. Be sure to only cool the cake in the pan for 10mins then turn it out onto a cooling rack to cool completely.
Hemangi says
Hi Olivia ! I have my daughters birthday coming up and wanted to make this version of boxed upgraded cake! But for 15 people would you say a 7 inch 2 or 3 layer cake is enough ! (We don’t mind leftovers!!) or best to make an 8inch 2 layer cake ?
Thanks your work is beautiful !
Olivia says
Hi Hemangi! The recipe as is, in two 8″ layers feeds 12 generously, so I think you could squeeze 15 out of it. Otherwise, I’d increase the recipe, but since it uses a box mix it would be easiest to double it. That would mean a lot of leftovers though! But you can freeze those 🙂
Kate! says
I used this recipe as the starting point for making the cakes for my wedding a few years ago, and I still use it every time I bake a birthday cake. Thank you for sharing!
Olivia says
Hi Kate! So happy to hear that. Thanks for taking the time to leave a review! 🙂
Jasmine Stice says
Hi there! So did you follow box mix recipe and then added the other ingredients?
Olivia says
Hi Jasmine! No, ignore the box mix ingredients and just use the components in my recipe.
Lisa says
What if it’s a butter recipe cake.? Should I add the butter from the box cake ingredient list?
Olivia says
Hi Lisa! No, but you could try swapping the oil in my recipe for melted butter.
Melinda Adams says
i am going to sub the water for milk and add a little chocolate pudding to boost the flavor!!! hope it works well!!
Olivia says
Hi Melinda! The water for milk should be totally fine. I haven’t tried adding pudding but let me know how it turns out!
Christina says
This was excellent! I subbed plain Greek yogurt for sour cream bc that’s what I had! Thanks for the great, simple recipe
Olivia says
Hi Chistina! So happy you loved it 🙂
KRV says
Did this recipe with a box of strawberry cake mix. It was the best box-mix cake I’d ever had. Thank you for sharing this with the world. Im bookmarking this for all future cake making! Cheers!
Olivia says
Hi KRV! So happy to hear that! Glad you loved it 🙂
Charlene H says
First time trying this and the cake turned out great. Thank you!
Olivia says
Glad you liked it Charlene! 🙂
Amanda says
Can I use plain Greek yogurt for the sour cream? And coconut or olive oil for the vegetable oil? Thanks!
Olivia says
Hi Amanda! Yes, both of those will be fine! The oil will give the cake some flavour though, as long as you don’t mind that.
Tiffane says
Love this recipe have used it for grad parties, birthdays etcetera!
Olivia says
Hi Tiffane! So happy you love it 🙂
Terence Crutchfield says
vanilla flavor or extract?
Olivia says
Hi Terence! Either works. I use extract.
Yaihra Gonzalez says
I absolutely loved the recipe!! I also had the same issue with the cupcakes 😭 they stuck to the paper on the cupcakes. But it’s tasted SO GOOD! ❤️
Olivia says
Hi Yaihra! So glad you loved it! 🙂
Zeah says
Hello there! Can I just use one 9″ cake pan for this recipe and bake them in the oven? Also, can I use whole milk (or any types of milk) instead of just using water?? Thanks a lot!
Olivia says
Hi Zeah! I think there will be too much batter for one 9″ cake pan. You can use any kind of milk you like.
Cass says
I loved this with the Betty Crocker Yellow cake mix. I’m going to try this with Neapolitan cupcakes tonight. (half yellow half chocolate with strawberry buttercream) I sometimes find chocolate box mixes are not chocolaty enough, could a tablespoon of unsweetened cocoa powder be added?
Olivia says
Hi Cass! I think you could totally add some cocoa powder to the chocolate cakes. I would reduce the flour by 1/4 cup and add 1/4 cup of cocoa powder.
Zeah says
Can I substitute milk (specifically coconut milk) instead of using water? Would it be the same measurement?? Also, can I reduce the amount of flour since I am going to add Purple Yam (Ube) Powder to the recipe to turn it into an ube cake??
Olivia says
Hi Zeah! You should be able to substitute almost any liquid, so that will be fine. Same measurement. I haven’t tried reducing/replacing some of the flour myself — how much were you planning to swap? I haven’t baked with Ube before, would you typically replace flour when adding it to a recipe?
Zeah says
Oh, thanks a lot! Maybe instead of reducing the flour then add ube powder, I will just retain the amount in the recipe and add a generous amount of ube. By the way, Stay Safe and Have a Nice Day!
Olivia says
If you’re adding a lot of the powder you may need to reduce the flour so the batter isn’t too thick and the cake isn’t too dry/dense. It may take some experimenting!
Mom says
Did you make this with ube? If so, how was it?
LED says
Your recipes are killer. I’ve done almost all of them on your site and this one was amazing.
The only thing I did differently was to reduce the sugar to 3/4 (next time i’ll do 1/2) and up the sour cream to (270). Thank you Olivia!
Olivia says
Hi LED! Wow! Thank you so much, that is amazing feedback! So happy you love this one and my other recipes too 🙂
Donna says
Can this be made as a bundt cake?
Olivia says
Hi Donna! For sure! You will just need to increase the baking time.
Destiny Colburn says
Hey, I was wondering if you add the amount off eggs the box recipe calls for and the amount in your recipe or just the amount in yours?
Olivia says
Hi Destiny! Only add the eggs I list. Treat the box mix as if it were the “flour” portion of a recipe.
Sammie says
As a cake, I loved it!
As cupcakes, I’m not sure if I’m doing something wrong. I knew I wanted to make cupcakes with this so I used same batter to bake cupcakes. The cake was stuck to the liners.
I just tried again today – hoping it was a flux the first time. Same thing though. What might I be doing wrong?
Olivia says
Hi Sammie! I haven’t made this as cupcakes myself but there should be no issue. Could it be the kind of liners you’re using?
Eleanor says
I wonder if it’s the small amount of oil that it sticks to liners. I’m just about to make them so now maybe I won’t uses liners??
Eleanor says
I used coconut oil to grease a non stick cupcake pan instead of paper liners. Baked about 20-23 min. and turned out great. They slipped right out after cooling 10 minutes. Everyone loved them.
Olivia says
So glad to hear that Eleanor!
Kim says
Hi! When using a white cake box mix can I omit the yolks to keep the cake brighter? Do I need to substitute them with anything? Thanks!!
Olivia says
Hi Kim! I would use 5 egg whites in place of 3 whole eggs.
Kierstyn Biondi says
Hey! I’m using your recipe for a Devil’s Food cake for my grandma’s birthday tomorrow! I’m using a 13’ by 9’ cake pan, not round pans. Should the cake still release from the pan okay? I don’t want them to fall apart!
Olivia says
Hi Kierstyn! That should be fine as long as you properly prepare the pan. I recommend using Homemade Cake Release (https://livforcake.com/homemade-cake-release/) and lining the bottom with parchment. Be sure to only cool the cake in the pan for 10mins then turn it out onto a cooling rack to cool completely.