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Cozy Strawberry Crumble Bars Recipe with Best Brown Butter Oat Topping

strawberry crumble bars - featured image

These cozy strawberry crumble bars feature a nutty brown butter oat topping and a sweet-tart strawberry filling, delivering comfort and delight in every bite. Perfect for a quick, no-fuss homemade treat.

Ingredients

Scale
  • 1 cup (125g) all-purpose flour
  • 1 cup (90g) rolled oats
  • 1/2 cup (100g) light brown sugar, packed
  • 1/4 teaspoon kosher salt
  • 1 teaspoon ground cinnamon
  • 1/2 cup (115g) unsalted butter, browned and slightly cooled
  • 3 cups (450g) fresh strawberries, hulled and sliced
  • 1/4 cup (50g) granulated sugar
  • 1 tablespoon lemon juice
  • 2 tablespoons cornstarch
  • 1 teaspoon vanilla extract (optional)

Instructions

  1. Preheat your oven to 350°F (175°C). Line your 9×9-inch pan with parchment paper, letting some overhang on the sides for easy removal later. If you forget parchment, generously grease the pan to avoid sticking.
  2. Brown the butter: In a medium saucepan over medium heat, melt the butter. Keep stirring frequently as it foams and turns golden brown, about 5-7 minutes. Remove from heat and let cool slightly.
  3. Make the crumble mixture: In a bowl, combine the flour, rolled oats, brown sugar, salt, and cinnamon. Pour in the browned butter and stir until the mixture looks crumbly but holds together when pressed, about 2-3 minutes. Adjust with a teaspoon of melted butter if too dry or more oats/flour if too wet.
  4. Prepare the strawberry filling: In another bowl, toss the sliced strawberries with granulated sugar, lemon juice, cornstarch, and vanilla extract. Stir gently until evenly coated.
  5. Assemble the bars: Press about two-thirds of the crumble mixture evenly into the bottom of the prepared pan. Spread the strawberry filling evenly on top.
  6. Add the topping: Crumble the remaining oat mixture over the strawberry layer without pressing it down.
  7. Bake: Place the pan in the oven and bake for 40-45 minutes until the topping is golden brown and the filling bubbles around the edges. Tent with foil after 30 minutes if browning too fast.
  8. Cool completely: Remove from oven and cool on a wire rack for at least 1 hour to set the filling.
  9. Slice and serve: Use the parchment overhang to lift bars out of the pan. Cut into 9 or 12 squares. Serve alone or with whipped cream or vanilla ice cream.

Notes

Use a light-colored pan for browning butter to better monitor color and aroma. Let bars cool completely before slicing to avoid soggy filling. Frozen strawberries can be used if thawed and drained. For gluten-free, substitute flour with gluten-free blend and use certified gluten-free oats. Vegan version possible by replacing butter with coconut oil or vegan butter and brown sugar with maple syrup.

Nutrition

Keywords: strawberry crumble bars, brown butter oat topping, easy dessert, berry bars, homemade snack, crumble bars, strawberry dessert