Oatmeal-Raisin Mug Cookie | Savory

Ingredients

• Cooking spray
• 1/2 ripe banana, sliced
• 1 large egg
• 1/2 cup old-fashioned rolled oats
• 1/4 cup low-fat milk or plant-based milk
• 1/4 tsp baking soda
• 1/4 tsp ground cinnamon, plus more to garnish
• Pinch of salt
• 1 tbsp raisins
• 1 tbsp chopped walnuts
• 2 tsp chocolate chips or mini chocolate chips (optional)
• Plain or vanilla nonfat Greek yogurt, to serve (optional)