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Cozy Rhubarb Crumble Bars

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These cozy rhubarb crumble bars feature a buttery oat topping that balances the tartness of fresh rhubarb, creating a chewy yet crumbly dessert perfect for seasonal baking and comforting treats.

Ingredients

Scale
  • 1 ½ cups (180g) all-purpose flour
  • 1 ½ cups (135g) rolled oats (old-fashioned preferred)
  • ¾ cup (150g) light brown sugar, packed
  • ½ teaspoon baking powder
  • ¼ teaspoon salt
  • 12 tablespoons (170g) unsalted butter, cold and cut into cubes
  • 4 cups (about 500g) rhubarb, chopped into ½-inch pieces
  • ¾ cup (150g) granulated sugar
  • 2 tablespoons cornstarch
  • 1 teaspoon vanilla extract
  • Optional: 1 tablespoon fresh lemon juice

Instructions

  1. Preheat your oven to 350°F (175°C). Grease a 9×9-inch pan or line it with parchment paper.
  2. In a large bowl, combine flour, rolled oats, brown sugar, baking powder, and salt. Cut in the cold butter using a pastry cutter or fingertips until mixture resembles coarse crumbs with some pea-sized bits. Reserve about 1 ½ cups of this mixture for the topping.
  3. Press the remaining crumble mixture firmly into the bottom of the prepared pan. Bake the crust for 12–15 minutes until lightly golden and just set.
  4. In a medium bowl, toss chopped rhubarb with granulated sugar, cornstarch, vanilla extract, and lemon juice if using. Mix until evenly coated.
  5. Remove the crust from the oven and spread the rhubarb filling evenly over it.
  6. Sprinkle the reserved crumble topping evenly over the rhubarb layer without pressing down.
  7. Bake the bars for 35–40 minutes until the topping is golden brown and the filling bubbles around the edges. Tent with foil if topping browns too quickly during the last 10 minutes.
  8. Let the bars cool completely in the pan on a wire rack to allow the filling to set.
  9. Cut into bars and serve warm or at room temperature.

Notes

Keep butter cold before mixing to achieve a crumbly texture. If filling is too runny, add more cornstarch next time. Let bars cool completely before cutting to avoid crumbling. Tent with foil if topping browns too quickly.

Nutrition

Keywords: rhubarb bars, crumble bars, oat topping, easy dessert, seasonal baking, rhubarb recipe, homemade bars, cozy dessert

Find it online: https://fizzlefork.com/cozy-rhubarb-crumble-bars-recipe-easy-homemade-oat-topping-bars/