Apple Cinnamon Baked Oatmeal for Make-Ahead Breakfasts

Baked oatmeal turns familiar porridge ingredients into a breakfast that can be portioned for several mornings. Small pieces of apple soften in the custard-like oat mixture, while cinnamon and a little maple syrup provide flavor. It should stay moist, not bake into a dry cereal bar.

Choose rolled oats for a tender bake

Rolled oats absorb liquid at a useful rate for this formula. Steel-cut oats need more liquid and a different cooking time; instant oats give a softer result.

Apples, milk and optional crunch

• Apples: Dice into roughly 1/4-inch pieces so they soften with the oats.
• Milk: Dairy milk or unsweetened soy milk works; other alternatives change protein and texture.
• Walnuts: Optional nuts add crunch and change the nutrition; the estimate includes them.

Make breakfast ahead without drying it out

Allow about 65 minutes, including a 10-minute rest before cutting into six portions. If assembling the night before, refrigerate the mixture covered and allow extra baking time for a cold start. Use a baking dish rated for refrigerator-to-oven use, or follow its manufacturer’s instructions to avoid thermal shock.

Vagner Carvalho

Apple Cinnamon Baked Oatmeal for Make-Ahead Breakfasts

Baked oatmeal turns familiar porridge ingredients into a breakfast that can be portioned for several mornings. Small pieces of apple soften in the custard-like oat mixture, while cinnamon and a little maple syrup provide flavor.

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Prep Time 15 minutes mins

Cook Time 40 minutes mins

Resting 10 minutes mins

Total Time 1 hour hr 5 minutes mins

Servings: 6 servings

Course: Breakfast

Cuisine: American

Calories: 310

Ingredients Equipment Method Notes

Ingredients

  

• 2 cups (180 g) rolled oats
• 1 teaspoon baking powder
• 1 1/2 teaspoons ground cinnamon
• 1/4 teaspoon fine salt
• 2 cups (480 ml) milk
• 2 large eggs
• 1/4 cup (60 ml) maple syrup
• 2 tablespoons melted unsalted butter, plus a little for the dish
• 1 teaspoon vanilla extract
• 2 medium apples (about 300 g), cored and diced small
• 1/3 cup (40 g) chopped walnuts, optional

Equipment

• 8-inch square baking dish

Method

 

1. Heat oven to 375°F (190°C). Butter an 8-inch square baking dish. Mix oats, baking powder, cinnamon and salt in a bowl.
2. Whisk milk, eggs, syrup, melted butter and vanilla in a second bowl. Stir into the oats, then fold in diced apple and optional walnuts. Pour into the dish and distribute fruit evenly.
3. Bake for 35–40 minutes until the center is set and no loose egg mixture remains. The center should reach 160°F (71°C). If the top colors early, cover loosely with foil.
4. Rest for 10 minutes so the oats absorb the remaining moisture. Cut into 6 portions or spoon into bowls.

Notes

Times are planning estimates; use the listed doneness cues. Nutrition is an approximate ingredient-based estimate for one-sixth of the dish, with optional walnuts.

Questions and troubleshooting

Can I mix it the night before?

Yes, refrigerate the combined mixture in the dish, covered. A cold dish and mixture may need extra oven time.

Why does it look soft when hot?

The oats continue absorbing moisture during the rest. Let it stand before deciding it is underbaked, but check the egg mixture is set.

Storage and reheating

Cool promptly and refrigerate for up to 3 days. Reheat portions until hot throughout with a splash of milk to keep them moist.

Estimated nutrition per serving

These are rough ingredient-based estimates for one-sixth of the dish, with optional walnuts, not laboratory measurements. Brands, portion size and substitutions affect the values; optional sides and toppings are excluded unless stated.

Other make-ahead breakfasts

For mornings when you do not want to turn on the oven, prepare overnight oats with berries. If you prefer a slice to take with you, try banana bread; cranberry orange scones offer a crisper alternative for a weekend breakfast.