Toppingsoptional: whipped cream, mixed berries, sprinkles, etc.
Instructions
Whisk butter and sugar into a small bowl with a fork. Add milk and vanilla extract and whisk again. In a separate small bowl, whisk together baking powder, salt, and flour.
Add the dry ingredients to wet ingredients and mix until no lumps remain. Add batter to a large mug or large ramekin.
Microwave for 60 seconds. Allow to cool (or serve warm if preferred). Top with favorite toppings like whipped cream, berries, or sprinkles.