Breakfast · Vegetarian · Make ahead · Baking · Fall

Apple Cinnamon Baked Oatmeal

Soft baked oats with diced apple, cinnamon and maple syrup. Cut the pan into six breakfast portions and refrigerate the extras for another morning.

1 hr 10 min6 servings
Timing breakdown · 2 timed stages

Estimated total: 15 minutes of preparation, 40 minutes of baking and 15 minutes of cooling. Bake longer if the centre has not set.

Preparation
15 min
Cooking
40 min
Baking Step 5
40 minutes
Resting / cooling Step 6
15 minutes

Durations are taken from the method and may overlap. Some preparation steps are not timed. Optional stages are separate from the main meal.

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AI-generated illustration of apple cinnamon baked oatmeal, with a portion on a white plate and a baking dish behind it

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How to make Apple Cinnamon Baked Oatmeal

  1. 01

    Heat the oven to 375°F (190°C). Grease an 8-inch square baking dish. Rinse the apple before coring and dicing it.

  2. 02

    Stir the oats, baking powder, cinnamon and salt together in one bowl.

  3. 03

    In the second bowl, beat the eggs. Whisk in the applesauce, milk, maple syrup, melted butter and vanilla.

  4. 04

    Combine the wet and dry mixtures, then fold in the diced apple. Spread evenly in the prepared dish.

  5. 05

    Bake for about 40 minutes. The edges should be golden and the centre set, with no loose liquid. Check the centre with a food thermometer; this breakfast casserole should reach 165°F (74°C). Continue baking if needed.

  6. 06

    Let the dish rest on a heatproof surface for 15 minutes, then cut into six portions. Serve warm.

Recipe questions

Can I make it ahead?

Bake the oatmeal first. Refrigerate portions in shallow covered containers within 2 hours, at 4°C (40°F) or colder. Use within 3 days. Reheat only the portions you need to 165°F (74°C).

Which apples work well?

Gala, Honeycrisp or Braeburn are useful choices. Keep the pieces small so they soften during baking; the peel can stay on.

Can I replace rolled oats with steel-cut oats?

Use old-fashioned rolled oats here. Steel-cut oats need different liquid amounts and cooking times, so they are not a direct substitute.

Why let it rest before cutting?

Resting helps the warm oat mixture hold together. Expect a soft breakfast bake, not a crisp granola bar.

Cooking & storage

Use the recipe’s specific storage directions when provided. Read the food storage guide for chilling and reheating food, and the measures guide before changing portions or ingredients.

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Adapted with butter, without raisins, and divided into six breakfast portions. Contains milk and egg. Check oat labels if avoiding wheat or gluten.

Adapted from Megan Gilmore at Detoxinista.

Additional guidance: Oregon State University Food Hero: apple baked oatmeal · Health Canada food storage guidance · FoodSafety.gov: casserole and reheating temperatures