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Hearty and Moist Cinnamon Oatmeal Muffins

Two freshly baked oatmeal muffins with a thick, crumbly cinnamon streusel topping resting on a white plate.

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Bake these hearty oatmeal muffins for a wholesome breakfast or snack. This recipe delivers a moist texture and comforting cinnamon flavor, perfect for busy mornings.

Ingredients

Scale
  • 1 1/2 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
  • 1/2 cup packed brown sugar
  • 1/4 cup granulated sugar
  • 1 large egg
  • 1/2 cup milk
  • 1/2 cup unsweetened applesauce
  • 1/4 cup melted unsalted butter or coconut oil
  • 1 teaspoon vanilla extract
  • For the Streusel Topping:
  • 2 tablespoons all-purpose flour
  • 2 tablespoons rolled oats
  • 2 tablespoons brown sugar
  • 1/4 teaspoon ground cinnamon
  • 1 tablespoon cold unsalted butter, cut into small pieces

Instructions

  1. Preheat your oven to 400 degrees Fahrenheit. Line a 12-cup muffin tin with paper liners or grease it well.
  2. In a large bowl, whisk together the flour, rolled oats, baking soda, baking powder, salt, and cinnamon.
  3. In a separate medium bowl, whisk the brown sugar, granulated sugar, egg, milk, applesauce, melted butter, and vanilla extract until combined.
  4. Pour the wet ingredients into the dry ingredients. Mix gently with a spatula until just combined. Do not overmix; a few lumps are acceptable.
  5. Prepare the streusel topping: In a small bowl, combine the flour, oats, brown sugar, and cinnamon for the topping. Cut in the cold butter using your fingers or a pastry blender until the mixture resembles coarse crumbs.
  6. Divide the batter evenly among the 12 muffin cups, filling each about two-thirds full.
  7. Sprinkle the streusel topping evenly over the top of the batter in each cup.
  8. Bake for 18 to 20 minutes, or until a toothpick inserted into the center of a muffin comes out clean.
  9. Let the muffins cool in the pan for 5 minutes before transferring them to a wire rack to cool completely.

Notes

  • For extra flavor, substitute maple extract for vanilla extract.
  • You can add 1/2 cup of mix-ins like chocolate chips or raisins to the batter before filling the cups.
  • These are excellent for meal prep and freeze well for up to three months.

Nutrition