5-Minute Microwave Nutella® Cake

Ingredients (9)

• + ¼ cup self-rising flour add to pantry
• + ¼ cup white sugar add to pantry
• + 1 egg add to pantry
• ✓ 3 tablespoons vegetable oil
• ✓ 3 tablespoons milk
• + 2 tablespoons unsweetened cocoa powder, or more to taste add to pantry
• + 2 tablespoons chocolate-hazelnut spread (such as Nutella®), or more to taste add to pantry
• + ½ teaspoon salt add to pantry
• ✓ ½ teaspoon vanilla extract