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One-Bowl Moist Banana Oatmeal Muffins for Quick Breakfast

A stack of three golden brown, moist oatmeal muffins topped with visible rolled oats, sitting on a white plate.

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Create incredibly soft, moist banana oatmeal muffins using a simple one-bowl method. These muffins use ripe bananas for natural sweetness, making them a healthy choice perfect for meal prep, grab-and-go snacks, or a satisfying morning treat.

Ingredients

Scale
  • 1 1/2 cups rolled oats
  • 1 1/2 teaspoons baking powder
  • 1 teaspoon ground cinnamon
  • 1/2 teaspoon baking soda
  • 1/4 teaspoon salt
  • 3 very ripe medium bananas, mashed
  • 1/2 cup milk (dairy or non-dairy)
  • 1/4 cup melted coconut oil or vegetable oil
  • 1/4 cup maple syrup or honey (optional, adjust based on banana sweetness)
  • 1 large egg
  • 1 teaspoon vanilla extract
  • 1/2 cup mix-ins like chocolate chips or chopped walnuts (optional)

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, combine the rolled oats, baking powder, cinnamon, baking soda, and salt. Whisk these dry ingredients together briefly.
  3. In a separate bowl, mash the ripe bananas thoroughly. Whisk in the milk, oil, maple syrup (if using), egg, and vanilla extract until combined.
  4. Pour the wet ingredients into the bowl with the dry ingredients. Mix gently with a spatula until just combined. Do not overmix; a few streaks of flour are acceptable.
  5. Fold in any optional mix-ins, like chocolate chips, if you are using them.
  6. Divide the batter evenly among the 12 prepared 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 texture, use bananas that are heavily spotted or almost black.
  • These muffins freeze well. Cool completely, then store in an airtight container or freezer bag for up to three months.
  • If you prefer a less sweet muffin, omit the maple syrup entirely, as the bananas provide natural sugar.

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