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The Ultimate Make-Ahead Apple Cinnamon Baked Oatmeal (Amish Style)

A close-up of a hearty slice of baked oatmeal, featuring visible apple chunks and topped with pecans.
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This baked oatmeal recipe delivers the comforting, classic flavor of Amish-style apple cinnamon oatmeal in a simple, make-ahead breakfast bake. It is perfect for meal prep.

Ingredients

Scale
  • 2 cups rolled oats (not instant)
  • 1 teaspoon baking powder
  • 1 teaspoon ground cinnamon
  • 1/2 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 (about 1 1/2 cups)
  • 1/2 cup chopped pecans or walnuts (optional, for topping)

Instructions

  1. Preheat your oven to 375 degrees Fahrenheit. Grease an 8×8 inch baking dish.
  2. In a large bowl, combine the rolled oats, baking powder, cinnamon, salt, and brown sugar. Mix these dry ingredients well.
  3. In a separate bowl, whisk together the egg, milk, melted butter, and vanilla extract.
  4. Pour the wet mixture into the dry ingredients. Stir until everything is just combined. Do not overmix.
  5. Fold in the diced apples.
  6. Pour the entire mixture into the prepared baking dish. Sprinkle the chopped nuts evenly over the top, if using.
  7. Bake for 35 to 40 minutes, or until the top is golden brown and the center is set.
  8. Let the baked oatmeal cool for about 10 minutes before cutting into squares.
  9. For meal prep, cool completely, cover, and refrigerate for up to 5 days or freeze individual portions. Reheat in the microwave or oven.

Notes

  • For a richer, more indulgent topping, mix 1/4 cup brown sugar, 2 tablespoons flour, 1/4 teaspoon cinnamon, and 2 tablespoons cold butter until crumbly. Sprinkle this streusel over the top before baking.
  • This recipe works well for freezer friendly breakfast prep. Cool completely, wrap portions tightly, and freeze for up to 3 months.
  • If you prefer a sweeter dish, increase the brown sugar to 1/3 cup.

Nutrition

Find it online: https://kitchenslang.com/easy-baked-oatmeal-apple-cinnamon-recipe/