Donut Mug Cake

• 1 tablespoon unsalted butter
• 1 egg yolk
• 2 tablespoons milk
• 1/2 teaspoon vanilla extract
• 3 tablespoons sugar
• 6 tablespoons self-rising flour
• For topping
• 1/2 cup powdered sugar
• 1 tablespoon milk
• scant drop red food coloring
• colored sprinkles

1. Put the butter into a microwave safe mug and microwave for 20 seconds to melt.
2. Add the egg yolk, milk, vanilla and sugar, then stir with a fork to combine. Add the flour and stir vigorously until batter is smooth. Microwave for 90 seconds to 2 minutes, until the cake has risen and top of the cake is firm to the touch.
3. Let cool for 2 minutes before decorating.
4. In the meantime whisk together the confectioners' sugar with the milk until smooth. Use food coloring to dye glaze pink.
5. When cake is cool, using a melon baller, scoop out a deep divot into the center of the cake. Top with glaze spreading to coat evenly allowing a bit to fall into the center and drip down the sides.
6. Sprinkle with sprinkles and serve.

unsalted butter, egg yolk, milk, vanilla extract, sugar, flour, powdered sugar, milk, coloring, colored sprinkles

Taken from www.food.com/recipe/donut-mug-cake-528275 (may not work)