High-protein egg-white peanut butter mug cake

Ingredients

For 1 serving

• Egg whites99 g
• Oat flour20 g
• Peanut butter10 g
• Nonfat Greek yogurt30 g
• Honey6 g
• Baking powder2 g

Contains: gluten, lactose, nuts, eggs,

Method

1. In a large microwave-safe mug (the cake doubles in size) beat the egg whites, Greek yoghurt, honey and peanut butter with a fork until smooth.
2. Add the oat flour and baking powder and stir until no flour is visible, scraping the bottom well.
3. Microwave at 800 W for about 2 minutes, until the cake has risen and the top is dry to the touch; if it is still shiny, carry on in 15-second bursts.
4. Let it stand for a minute before eating: it finishes cooking and comes away from the mug.