In a bowl, whisk together all the ingredients until smooth.
Pour the mixture into the mug and microwave for 70-80 seconds.
Remove carefully from the microwave (take caution as the cake and mug will be hot).
Add a teaspoon or drizzle of choc hazelnut spread on top of the cake whilst it’s hot. Enjoy!
Sarah is a food technologist at VPA where she creates new and exciting products, and ensures that all VPA products are made to a superior standard. She is passionate about health, food, and her dachshunds.