Baked Oats Recipe

Make Baked Oats Recipe in an 8-inch pan for warm, blueberry-studded breakfast squares ready in about 50 minutes.

Ingredients

• 2 cups (190 g) old-fashioned rolled oats
• 1 teaspoon baking powder
• 1/2 teaspoon fine sea salt
• 1 teaspoon ground cinnamon
• 1 medium very ripe banana, peeled and mashed (about 1/2 cup / 115 g), at room temperature
• 1 large egg, at room temperature
• 1 3/4 cups (420 ml) milk of choice (whole cow’s milk, oat milk, or almond milk), at room temperature
• 1/4 cup (60 ml) pure maple syrup or honey
• 2 teaspoons pure vanilla extract
• 2 tablespoons (28 g) unsalted butter, melted and slightly cooled, plus a little extra for greasing the baking dish
• 1 cup (150 g) fresh or frozen blueberries (do not thaw if frozen)
• 2 tablespoons (20 g) chopped nuts (such as pecans, walnuts, or almonds), optional
• 1 tablespoon (12 g) coarse sugar or granulated sugar, optional, for sprinkling on top
• Plain Greek yogurt, for serving, optional
• Extra fresh berries, for serving, optional
• Additional maple syrup or honey, for serving, optional

Instructions

Step 1: Preheat and prepare the baking dish

Preheat your oven to 350°F (175°C) and position the rack in the center. Lightly grease an 8-inch (20 cm) square baking dish with a little softened or melted butter, coating bottom and sides evenly so the baked oats will release cleanly later. This setup step is quick but crucial for clean edges and an attractive final square.

Step 2: Combine the dry ingredients

In a single modern matte light-grey ceramic bowl, stir together the rolled oats, baking powder, fine sea salt, and ground cinnamon until the dry mixture looks uniformly textured — the oats grainy and the cinnamon dusted through in warm specks. Use a spoon or spatula to make sure the baking powder is evenly dispersed; visually you should see a dry, even oat mixture ready to receive wet ingredients.

Step 3: Whisk the wet mixture until smooth

In the same grey bowl (or a matching medium bowl if you prefer separation), mash the very ripe banana until almost smooth, then whisk in the egg, room-temperature milk, maple syrup (or honey), and vanilla until the liquid is homogeneous and slightly frothy. Slowly drizzle in the melted, slightly cooled butter while whisking so the fat integrates and the mixture looks silky and slightly aerated — no pools of butter should remain.

Step 4: Combine wet and dry into a loose, pourable batter

Pour the wet mixture into the bowl with the dry oats and fold gently with a spatula until every oat is evenly moistened and the batter is loose and pourable. Fold in the blueberries and the chopped nuts just until distributed — the berries should remain intact, creating scattered pockets of color and moisture throughout the batter. The texture at this point is wet but structured, with visible oat grains and berry islands.

Step 5: Transfer to the prepared pan and finish before baking

Pour and scrape the batter into the greased square baking dish, spreading it into an even layer with the back of a spoon or spatula so the top is smooth but textured with berry peaks. If using, sprinkle coarse or granulated sugar evenly across the top to form a lightly crisp, sweet crust as it bakes. This is the last visual moment before oven transformation — a neatly filled square pan, glossy with batter and dotted with berries.

Step 6: Bake, rest, slice, and serve warm

Bake at 350°F (175°C) for 30–35 minutes until the top is lightly golden, edges are set and pulling away slightly, and the center springs back gently; a toothpick will come out with only a few moist crumbs. Remove from the oven, let rest 10–15 minutes to firm up, then cut into 4–6 neat squares. Serve warm — each square with a spoonful of plain Greek yogurt, extra fresh berries, and a drizzle of maple syrup if you like. For leftovers, cool completely, refrigerate up to 4 days, and reheat gently; for a firmer grab-and-go bar texture, bake a touch longer and cool fully before slicing.

Notes

• Use very ripe bananas for natural sweetness and better binding.
• For dairy-free version, swap milk and butter with plant-based alternatives.
• To firm bars for grab-and-go, bake a few minutes longer and cool completely before slicing.
• Freeze individual squares between parchment for up to 2 months.
• If using frozen berries, add them straight from the freezer to prevent excess color bleed.