The ratio of butter to leavener to flour to egg
Donโt use shortening here; youโll miss the flavor of butter
Slightly under-baking the snickerdoodles also guarantees a softer cookie
Taking them out of the oven after about 10-11 minutes will ensure that they are soft and chewy
Use natural cocoa powder and buttermilk
Make sure youโre using natural unsweetened cocoa powder, not dutched cocoa
Fill the cupcake liners only halfway full. Not 2/3, not 3/4, not all the way to the top. Half full