Time: 5 mins Difficulty: Easy as Ingredients: 4 tbsp self raising flour, 4 tbsp white sugar, 1 egg, 3 tbsp cocoa powder, 3 tbsp Nutella, 3 tbsp milk, 3 tbsp veg oil Method: Combine all ingredients in a large coffee mug. Whisk well with a fork until smooth. Microwave on high for 1 1/2 - 3 mins (depending on wattage).