Baked apple cinnamon oatmeal squares with walnuts and maple drizzle

Apple Cinnamon Baked Oatmeal

Name: Apple Cinnamon Baked Oatmeal
Prep time: 15 min
Cook time: 40 min
Total time: 55 min
Yield: 10 servings
Cuisine: American
Ingredients: 3 cups rolled oats; 1 cup steel-cut oats; 4 cups whole milk; 2 large eggs; 3 large apples; 2 tsp ground cinnamon; 1/2 cup brown sugar; 1/2 cup chopped walnuts

Warm spiced oat squares with tender apple chunks for easy portioning.

Prep: 15 min
Cook: 40 min
Serves 10
Difficulty: easy

Warm oat squares with apple and cinnamon — portioned from a 9x13 so ten firefighters get the same bowl without standing over a pot. Holds in a low oven between eaters.

299Cal

11gProtein

44gCarbs

10gFat

Ingredients

3 cups rolled oats
1 cup steel-cut oats
4 cups whole milk
2 large eggs
3 large apples
2 tsp ground cinnamon
1/2 cup brown sugar
1/2 cup chopped walnuts

Instructions

Heat the oven: Heat oven to 375°F. Grease a 9x13 baking dish. Toss diced apples with half the cinnamon and spread in the bottom of the dish.
Mix the oat base: Whisk oats, milk, eggs, brown sugar, remaining cinnamon, nutmeg, and a pinch of salt until combined. The mixture should look like thick pourable batter.
Pour and top: Pour oat mixture over apples and scatter walnuts on top. Tap the dish to settle the batter evenly for uniform slices.
Bake until set: Bake until the center is set, edges are golden, and a knife inserted in the middle comes out clean. The top should spring back lightly when pressed.
Rest and portion: Rest 10 minutes before cutting into squares. Serve warm with maple syrup and optional butter pats. Hold uncovered at 200°F for up to 30 minutes.

Station workflow

Dice apples and mix batter while the oven preheats—this bake is forgiving on timing.
Cut squares in the pan with a sharp knife wiped between cuts for clean portions.
Set maple and walnuts at the line so customization doesn't bottleneck the hot squares.

Cleanup

Soak the 9x13 in warm water immediately—baked oatmeal cement is easier to release when warm.
Line the prep bowl with a thin film of oil before mixing sticky oat batter for faster cleanup.

Leftovers

Wrap squares individually and reheat at 325°F for 10 minutes with a splash of milk on top.
Crumble cold squares into a skillet with butter and pan-fry until crisp for oatmeal hash browns.