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Amish-Style Apple Cinnamon Baked Oatmeal with Crunchy Streusel Topping

A close-up view of a square slice of apple baked oatmeal with a thick, crunchy cinnamon crumble topping.

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Make this comforting Amish-Style Apple Cinnamon Baked Oatmeal. It features tender apples, warm cinnamon, and a satisfying crunchy streusel topping. This recipe works well for family breakfasts or for meal prep throughout the week.

Ingredients

Scale
  • 1 1/2 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 or walnuts (optional, for topping)
  • 2 tablespoons butter, softened (for streusel)
  • 1/4 cup all-purpose flour (for streusel)
  • 1/4 cup brown sugar, packed (for streusel)
  • 1/4 teaspoon ground cinnamon (for streusel)

Instructions

  1. Preheat your oven to 375 degrees Fahrenheit. Lightly grease an 8×8 inch baking dish.
  2. In a large bowl, mix the rolled oats, baking powder, cinnamon, and salt.
  3. In a separate medium bowl, whisk together the 1/4 cup brown sugar, egg, milk, 1/4 cup melted butter, and vanilla extract until combined.
  4. Pour the wet ingredients over the dry ingredients and stir until just mixed. Fold in the diced apples.
  5. Pour the oat mixture into the prepared baking dish.
  6. Prepare the streusel topping: In a small bowl, combine the 2 tablespoons softened butter, flour, 1/4 cup brown sugar, and 1/4 teaspoon cinnamon. Use your fingers or a fork to cut the butter into the dry ingredients until coarse crumbs form. Stir in the chopped nuts, if using.
  7. Sprinkle the streusel topping evenly over the oatmeal mixture.
  8. Bake for 35 to 40 minutes, or until the top is golden brown and the center is set.
  9. Let the baked oatmeal cool for 5 to 10 minutes before cutting into squares and serving warm.

Notes

  • You can prepare this make ahead breakfast by assembling the entire dish (without baking) the night before. Cover and refrigerate. Add 5 to 10 minutes to the baking time if baking straight from the refrigerator.
  • This oatmeal bake freezes well. Cool completely, cut into individual portions, wrap tightly, and freeze for up to one month. Reheat in the microwave or oven.
  • For a healthier option, substitute half the butter in the streusel with applesauce.

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