Fudgy Nutella® Mug Cake

Details

Ingredients

• 2 tablespoons all-purpose flour
• 2 tablespoons coconut flour
• 1 tablespoon cocoa powder
• ¼ teaspoon baking powder
• 3 ½ tablespoons almond milk, divided
• ½ teaspoon vanilla extract
• 3 tablespoons chocolate-hazelnut spread (such as Nutella®)