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One-Bowl Moist Banana Oatmeal Muffins for Quick Breakfast

Three golden brown banana oatmeal muffins sitting on a light gray plate, highlighted by natural sunlight.

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Make these soft, wholesome banana oatmeal muffins using a simple one-bowl method. They use ripe bananas for natural sweetness and are perfect for meal prep or a grab-and-go breakfast.

Ingredients

Scale
  • 1 3/4 cups all-purpose flour
  • 1 cup rolled oats
  • 1 teaspoon baking soda
  • 1/2 teaspoon baking powder
  • 1/2 teaspoon salt
  • 1 teaspoon ground cinnamon
  • 3 very ripe medium bananas, mashed (about 1 1/2 cups)
  • 1/2 cup packed light brown sugar
  • 1/4 cup melted unsalted butter or coconut oil
  • 1 large egg, lightly beaten
  • 1/2 cup milk (dairy or non-dairy)
  • 1 teaspoon vanilla extract
  • 1/2 cup mix-ins, optional (e.g., chocolate chips or chopped walnuts)

Instructions

  1. Preheat your oven to 375°F (190°C). Line a 12-cup muffin tin with paper liners or grease well.
  2. In a large bowl, whisk together the flour, rolled oats, baking soda, baking powder, salt, and cinnamon. This is your dry mixture.
  3. In a separate medium bowl, combine the mashed bananas, brown sugar, melted butter or oil, egg, milk, and vanilla extract. Mix until just combined.
  4. Pour the wet ingredients into the dry ingredients. Use a spatula to mix until the batter comes together. Do not overmix; a few streaks of flour are acceptable.
  5. If using, gently fold in your optional mix-ins like chocolate chips.
  6. Divide the batter evenly among the 12 muffin cups, filling each about two-thirds full.
  7. Bake for 18 to 22 minutes, or until a toothpick inserted into the center of a muffin comes out clean.
  8. Let the muffins cool in the pan for 5 minutes before transferring them to a wire rack to cool completely.

Notes

  • For the best moisture, use bananas that are heavily spotted or almost black.
  • These muffins freeze well. Cool them completely, then store them in a freezer-safe bag for up to three months. Thaw on the counter or microwave briefly before eating.
  • To make these gluten-free, substitute the all-purpose flour with a 1-to-1 gluten-free baking blend.

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