From Clever Cupcake in Montreal - Kool-Aid buttercream

Grape Kool Aid Buttercream

2 1/4 cups powdered sugar
4 single serving grape kool aid packets
1/4 cup boiling water
1/2 cup butter
1/2 cup trans fat free crisco

Place powdered sugar and kool aid in bowl of mixer and pour boiling water over top. Mix at high speed using whip attachment until mixture is cooled to room temperature. Add butter and crisco then whip at high speed for 10 minutes. Add optional blue food colouring.