Red Velvet Mug Cake

Mix sugar, flour, Cocoa powder, baking powder and salt in a bowl

In microwave safe mug, whisk milk and vinegar well

Add dry ingredients and oil. Whisk until well combined. Add red food colouring and mix well

Microwave on high power for 1 min or 1 min 10 sec depending on microwave capacity. Switch off microwave. Rest cake for 2 mins in microwave

Allow to cool slightly. Serve as is or dust with powdered sugar or icing and serve