Here is a macaron recipe that combines my favourite biscuit- Oreos with a classic French Macaron recipe. These macaron shells contain crushed Oreos and are filled Oreo buttercream. To make these macarons taste even better place them in the fridge overnight. The macarons will get chewier and taste better due to the moisture from the buttercream being absorbed into the macaron shells. This recipe will make 16 macarons.