5-Ingredient Nutella Mug Cake

In a large microwave-safe mug, combine the Nutella, flour, milk, baking powder, and vanilla extract (if using).

Stir well until all ingredients are thoroughly mixed and the batter is smooth.

Microwave on high for 60-90 seconds. Cooking time may vary depending on your microwave, so start with 60 seconds and add 10-15 second increments if needed, until the cake is cooked through but still slightly gooey in the center.

Let cool slightly before enjoying directly from the mug.