Pour contents of Ulf Brand’s Lemon Mug Cake Mix in a microwave friendly mug. Add a pinch of Orange Zest, 1.5 tbsp Oil and 3 - 4 tbsp Orange Juice to the mug and mix just until no dry powder is visible. Microwave on ‘high’ for 60 seconds.
Pro tip : Use freshly squeezed / unsweetened orange juice for best results.