• Preheat oven to 350℉
• Beat together, butter, sugar, egg whites and extract till well combined
• In a separate bowl stir together flour, baking powder and salt
• Add dry to wet and stir until just mixed, don't overmix
• Add milk and stir till combined
• Add to prepared ramekin, bake for 20 minutes until a toothpick comes out clean
• Remove from oven, cool on cooling rack, fill/frost as you'd like

Buttercream Frosting

• Mix all ingredients until a soft, smooth consistency.
• If too runny add a tiny amount (1/2 tsp) of powdered sugar at a time until thick enough to spread.
• If too thick, add a tiny amount (1/4 tsp) of milk at a time until it is a proper spreading consistency