Breakfast / Oatmeal, granola & bowls

Toasted Baked Oatmeal with Berries and Walnuts

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A square baking dish of golden baked oatmeal topped with baked berries and walnuts, one square cut out and served in a bowl with milk.

Put it in the oven on Sunday and the house smells of cinnamon and toasted walnuts before anyone has found their slippers. Let it set ten minutes, then cut it, and breakfast is handled for days.

The short version

Toast the oats and nuts for a few minutes, stir in milk, melted butter, egg, maple syrup, cinnamon and berries, pour into an 8-inch dish, and bake at 375°F for about 30 minutes. Let it set 10 minutes before cutting.

What makes ours better

small changes, very loud compliments

  • Toast the oats and walnuts first. Five minutes on a sheet pan turns flat, pasty oats nutty and gives the bake a toasted-granola edge.

  • Add a full teaspoon of cinnamon and a good pinch of salt. Oats are a blank canvas. Salt and spice are what make the maple and fruit taste like something.

  • Press extra berries on top. The fruit on the surface bakes into jammy pockets and makes every square look finished.

What you need

check the pantry before you promise anyone

  • Old-fashioned rolled oats2 cups
  • Walnuts or pecans½ cup
  • Whole milk or nondairy milk2 cups
  • Unsalted butter4 tablespoons
  • Maple syrup or honey⅓ cup
  • Egg1 large
  • Vanilla extract1 teaspoon
  • Fresh or frozen berries1½ cups

Full ingredient list ↓

Prep
15 min
Bake
30 min
Total
55 min incl. 10 min hands-off (go sit down)
Makes
one 8-inch square dish, 6 generous squares

Ingredients

Makes 6 squares

yes, all of the butter

Steps

go slow. the good part can’t be rushed.

  1. Heat the oven, toast the oats

    Heat the oven to 375°F with a rack in the middle. Spread the oats and walnuts on a rimmed baking sheet and toast, stirring once, until they smell nutty and the nuts darken a shade, 6 to 8 minutes.

    About 7 min. Cook mode has a timer for this step.

  2. Butter the dish

    Butter an 8-inch square baking dish. Leave the oven on.

  3. Mix the wet ingredients

    In a large bowl, whisk the melted butter, milk, maple syrup, egg, vanilla, cinnamon and salt until smooth.

  4. Stir in oats and berries

    Add the toasted oats and nuts and 1 cup of the berries and stir to combine. Pour into the dish and spread level. Scatter the remaining ½ cup berries over the top.

  5. Bake

    Bake until the top is golden, the edges are pulling away from the dish, and the center is set when you press it, about 30 minutes. Frozen berries may need up to 35 minutes.

    About 30 min. Cook mode has a timer for this step.

  6. Rest, then cut

    Let the oatmeal rest in the dish for 10 minutes, then cut into squares. Serve warm with a splash of cold milk over the top.

    About 10 min. Cook mode has a timer for this step.

Good to know

the stuff I’d tell you over the phone

  • Old-fashioned oats give the best texture. Quick oats turn mushy and steel-cut oats stay hard, so don't swap them one for one.
  • For dairy-free, use coconut oil for the butter and any nondairy milk.
  • Not a berry fan? Use 1 cup diced apple or banana slices with extra cinnamon, or ½ cup chopped dried fruit.
  • Storage. Cover and refrigerate up to 5 days. Freeze cut squares in a bag up to 3 months. Reheat a square in the microwave for 45 to 60 seconds, with a splash of milk.

Questions, answered

asked and answered at the kitchen counter

Can I use quick oats for baked oatmeal?

You can, but the texture gets softer and more porridge-like. Rolled oats are what give it a chewy, sliceable bite.

Why is my baked oatmeal dry?

It baked too long or the oats were packed into the cup. Measure by weight if you can, pull it when the center is just set, and serve with cold milk.

Can I make baked oatmeal the night before?

Yes. Mix the batter, cover and refrigerate overnight, then pour it into the dish and bake. Add 5 minutes to the time if it goes in cold.

Can I make baked oatmeal without eggs?

You can use a flax egg, 1 tablespoon ground flax stirred with 3 tablespoons water, resting 5 minutes. It will be a bit softer and more crumbly.

Is baked oatmeal good reheated?

Better than most things. Microwave a square with a splash of milk, or crisp it in a buttered skillet for the edges.

From the table

Made it? Tell me everything. Especially if somebody said it was better than their mother’s. I’ll keep your secret.

Flour on your hands? Big steps, screen stays on.

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