3-Layer Cake In the Microwave Recipe

Ingredients

• 1 cup (227g) unsalted butter, melted and cooled
• 2 cups (400g) sugar
• 2 large eggs
• 2 cups (480ml) whole milk
• 1 tablespoon vanilla extract
• 3 cups (360g) all-purpose flour
• 2 teaspoons baking powder
• 1/2 teaspoon baking soda
• 1/2 teaspoon salt
• 1 1/2 cups (341g) unsalted butter, at room temperature
• 6 cups (680g) powdered sugar
• 1/3 cup (80ml) whole milk
• 1 teaspoon vanilla extract
• Rainbow sprinkles, for decorating