• 2 cups all-purpose flour
• 3 1/2 teaspoons baking powder
• 1/2 cup unsalted butter, room temperature
• 1 teaspoon vanilla extract
• Pink, orange, yellow, green, blue and purple food colouring
• 2 cups unsalted butter, room temperature
• 1 teaspoon vanilla extract
• 5 cups confectioner's sugar
• Pink, yellow, green, blue and black food colouring