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Apple Cinnamon Baked Oatmeal with Crunchy Streusel

A square portion of warm baked oatmeal with visible apple chunks and a crunchy brown sugar topping, served in a white dish.

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A comforting, make-ahead breakfast featuring tender baked oats, sweet apples, warm cinnamon, and a crisp streusel topping.

Ingredients

Scale
  • 2 cups rolled oats
  • 1 teaspoon baking powder
  • 1 teaspoon ground cinnamon
  • 1/4 teaspoon salt
  • 1/4 cup brown sugar, packed
  • 1 large egg, lightly beaten
  • 1 1/2 cups milk (dairy or non-dairy)
  • 1/4 cup melted butter or coconut oil
  • 1 teaspoon vanilla extract
  • 2 medium apples, peeled and diced
  • 1/4 cup chopped pecans (optional, for topping)
  • 2 tablespoons brown sugar (for topping)
  • 2 tablespoons all-purpose flour (for topping)
  • 2 tablespoons cold butter, cut into small pieces (for topping)

Instructions

  1. Preheat your oven to 375 degrees Fahrenheit. Grease an 8×8 inch baking dish.
  2. In a large bowl, mix the rolled oats, baking powder, cinnamon, salt, and 1/4 cup brown sugar.
  3. In a separate bowl, whisk together the egg, milk, melted butter, and vanilla extract.
  4. Pour the wet ingredients into the dry ingredients and stir until just combined. Do not overmix.
  5. Gently fold in the diced apples.
  6. Pour the oat mixture into the prepared baking dish.
  7. Prepare the streusel: In a small bowl, combine the 2 tablespoons brown sugar, flour, and pecans (if using). Cut in the 2 tablespoons cold butter using your fingers or a pastry blender until the mixture resembles coarse crumbs.
  8. Sprinkle the streusel evenly over the top of the oatmeal mixture.
  9. Bake for 35 to 40 minutes, or until the top is golden brown and the center is set.
  10. Let the baked oatmeal cool for 5 minutes before cutting and serving.

Notes

  • You can prepare the entire dish the night before, cover it, and refrigerate. Add 5 to 10 minutes to the baking time if baking directly from the refrigerator.
  • For a gluten-free version, use certified gluten-free rolled oats.
  • Serve warm with a drizzle of maple syrup or a dollop of yogurt.

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