01 -
In a mixing bowl, whisk together milk, melted butter, sugar, and vanilla extract until fully combined.
02 -
Add flour and baking powder to the wet mixture. Stir until a smooth batter forms with no visible lumps.
03 -
Pour the batter into a large microwave-safe mug, filling only halfway to prevent overflow during cooking.
04 -
Microwave on high for 1 to 2 minutes, or until the cake has risen and is set on top.
05 -
In a small bowl, whisk together powdered sugar, milk, and vanilla extract until a smooth glaze forms.
06 -
Drizzle the glaze evenly over the warm mug cake before serving.