← BlogJune 28, 2026

How to Make the Perfect Banana Cinnamon Oatmeal

American · Easy · 5 min · 1 servings

vegetariangluten-free
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This naturally sweet banana cinnamon oatmeal is made in the microwave in just 4 minutes and requires no added sugar. The ripe banana melts into the oats during cooking creating a creamy and comforting quick breakfast.

Why this recipe works

This Banana Cinnamon Oatmeal recipe has been crafted to deliver restaurant-quality results in your home kitchen. At just 5 minutes from start to finish, it fits perfectly into a busy schedule without sacrificing flavor. Each serving comes in at 230 calories with 6g of protein, making it a balanced choice for any meal.

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What you will need

This recipe uses 4 simple ingredients that you can find at any grocery store:

  • 0.5 cup rolled oats
  • 1 medium ripe banana mashed
  • 1 cup milk
  • 0.5 teaspoon cinnamon

Step by step instructions

Step 1: Mash and Combine

In a large microwave-safe bowl, mash the ripe banana thoroughly with a fork until smooth. Add the rolled oats, milk, and cinnamon and stir everything together until well combined.

Step 2: First Microwave Interval

Microwave on high for 2 minutes. The mixture will start to bubble and thicken. Watch carefully to ensure it does not boil over the sides of the bowl.

Step 3: Stir and Continue Cooking

Remove from the microwave and stir well to incorporate the banana throughout the oats. Return to the microwave and cook for 1 more minute until the oatmeal is creamy and thick.

Step 4: Rest and Serve

Allow the oatmeal to rest for 1 minute before eating as it will thicken further and cool to a comfortable eating temperature. Add extra banana slices on top and a sprinkle of cinnamon if desired.

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Easy substitutions

Missing an ingredient? Here are some swaps that work perfectly:

  • milk → almond milk or coconut milk for a dairy-free version with added flavor
  • rolled oats → quick oats which will cook in about 2 minutes total for an even faster breakfast

Common mistakes to avoid

Watch out for these pitfalls that can affect your results:

  • Using an underripe banana which does not provide enough natural sweetness and does not blend smoothly into the oats
  • Choosing a bowl that is too small which causes the oatmeal to bubble and overflow inside the microwave

Nutrition facts

Per serving: 230 calories, 6g protein, 46g carbs, 3g fat, 5g fiber.

Ready to cook?

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