what is a macaron?
macÂ·aÂ·ron. n. A small round cookie composed of a soft filling, such as ganache or buttercream, sandwiched between two delicate shells made from egg whites, ground almonds, sugar, and often other flavorings.acÂ·aÂ·ron. n. A small round cookie composed of a soft filling, such as ganache or buttercream, sandwiched between two delicate shells made from egg whites, ground almonds, sugar, and often other flavorings.