Microwave Nutella cake

Name: Microwave Nutella cake
Prep time: 5 min
Cook time: 1 min
Total time: 6 min
Yield: 1 servings
Ingredients: ¼ tsp of Baking powder; 1 pinch of Fine sea salt; 1 Large egg; 75 gr of Nutella; 15 gr of Plain flour