Microwave Banana Cake in a Bowl

Details

Ingredients

• 6 tablespoons whole wheat flour
• 4 ½ tablespoons white sugar
• ⅛ teaspoon baking powder
• ½ banana, mashed
• 3 tablespoons milk
• 3 tablespoons vegetable oil
• 1 ½ teaspoons vanilla extract
• 2 tablespoons chocolate-hazelnut spread (such as Nutella®), or to taste