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Baked Cinnamon Apple Oatmeal

This baked oatmeal combines oats, diced apples, and warm cinnamon in a custard-like mixture that bakes into a tender, slightly chewy casserole with crispy edges. The finished dish has a golden top with bubbling, moist layers inside, offering a hearty and aromatic breakfast option with visible apple chunks and a cinnamon scent. It is served warm, often with toppings like nuts or a drizzle of honey, providing a comforting sensory experience.
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Prep Time 10 minutes
Cook Time 40 minutes
Total Time 50 minutes
Servings: 4
Course: Breakfast
Cuisine: Comfort Food
Calories: 350
Ingredients Equipment Method

Ingredients
  

  • Rolled oats 1 1/2 cups old-fashioned: Provides Hearty wholesome base texture
  • Fresh apples 2 large peeled and diced: Adds Natural fruity sweetness and moisture
  • Ground cinnamon 1 teaspoon: Brings Warm aromatic spice flavor
  • Brown sugar or maple syrup 1/2 cup: Enhances Rich caramel-like sweetness
  • Milk 2 cups dairy or plant-based: Creates Creamy baked consistency
  • Eggs 2 large beaten: Helps Bind ingredients and add structure
  • Vanilla extract 1 teaspoon optional: Adds Gentle sweet bakery aroma
  • Unsalted butter 1/4 cup melted: Provides Richness and golden crisp edges

Equipment

  • Mixing bowl
  • Baking dish
  • Whisk
  • Knife and cutting board
  • Measuring cups

Method
 

  1. Preheat the oven to 375°F (190°C).
  2. Lightly grease a baking dish with butter.
  3. In a bowl, combine rolled oats and cinnamon.
  4. Stir in diced apples evenly.
  5. In another bowl, whisk eggs and milk together.
  6. Add brown sugar or maple syrup to the mixture.
  7. Stir in melted butter and vanilla extract.
  8. Pour wet ingredients over the oat mixture.
  9. Mix gently just until the oats are evenly coated and the apples are distributed. Do not overmix.
  10. Transfer mixture into the prepared baking dish.
  11. Bake for 30–35 minutes, or until the center is set and the top turns lightly golden.
  12. Cool slightly before slicing and serving.