Instagram Sticker Heart Cake - cooking recipe

Ingredients

For the cake
use Magnolia Bakery's Vanilla Birthday Cake and Frosting for the cake
For the buttercream
2 cups unsalted butter, at room temperature
4 cups icing sugar
2 teaspoons pure vanilla extract
1/4 teaspoon purple gel food coloring

Preparation

While the cake is cooling, make the buttercream. In the bowl of a stand mixer fitted with the paddle attachment, beat the butter, sugar and vanilla extract on high speed until light and fluffy and doubled in volume, about three minutes. Add the purple gel food colouring and mix until combined.