
Creado con IA
Melt the unsalted butter in a microwave-safe mug for about 20 seconds until just melted.
Add the brown sugar to the mug and mix well with the melted butter.
Crack in the large egg and whisk until fully combined.
Pour in the low-fat milk and vanilla extract, and stir until smooth.
Add the all-purpose flour, cocoa powder, gochugaru, baking powder, and salt to the mug.
Mix thoroughly until you have a smooth, lump-free batter.
Microwave the mug on high for 1 minute and 30 seconds, or until the cake has risen and is set in the center (microwave times may vary).
Let the mug cake cool for 1-2 minutes before enjoying. Optionally, dust with extra cocoa powder or a pinch of gochugaru for garnish.