Could you tell me how to prepare Blueberry Muffin Mug?
Here's a recipe for Blueberry Muffin Mug:

Ingredients:

• 3 tablespoons fresh blueberry
• 1/4 cup oat flour
• 1/2 teaspoon baking powder
• 2 tablespoons honey
• 1 egg white
• 1/2 teaspoon nutmeg

Instructions:

1. Mix together egg white and honey in a greased coffee mug.
2. Add oat flour, baking powder, and nutmeg, and mix until combined.
3. Add in fresh blueberries.
4. Microwave on high for 90 seconds (times may vary).

Enjoy your Blueberry Muffin Mug!