Once dry, bake macarons in a 300°F oven until they stick a little bit to the pans. This can be anywhere from 10-20mins depending on your oven and how crowded the macarons are on the pan.
Let cookies cool completely before removing from pans.
Pipe buttercream into the center, sandwich the cookies and press together.
*I used a heart template and placed it under my Silpat mat. **You will need to do a LOT of folds to get the batter to the proper consistency. You're looking for it to be smooth and shiny and have some movement. If you lift some up with a spatula, it should pour in a steady stream and settle into the remaining batter. DO NOT overmix. *** Do not be shy with the whacking!