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Easy Rhubarb Crisp Recipe with Oats and Brown Sugar Topping You’ll Love

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A quick and easy rhubarb crisp featuring a tangy rhubarb filling topped with a crunchy oat and brown sugar mixture, perfect for springtime desserts.

Ingredients

Scale
  • 4 cups rhubarb, trimmed and cut into 1-inch pieces (fresh or frozen)
  • 3/4 cup granulated sugar
  • 1 tablespoon cornstarch
  • 1 teaspoon vanilla extract
  • 1 cup old-fashioned rolled oats
  • 1/2 cup all-purpose flour (or almond flour for gluten-free)
  • 1/2 cup packed light brown sugar
  • 1/4 cup packed dark brown sugar
  • 1/2 teaspoon ground cinnamon (optional)
  • 1/4 teaspoon salt
  • 1/2 cup unsalted butter, cold and cut into small cubes (or dairy-free butter)

Instructions

  1. Preheat your oven to 375°F (190°C).
  2. In a mixing bowl, combine the rhubarb pieces, granulated sugar, cornstarch, and vanilla extract. Toss gently until evenly coated.
  3. Transfer the filling to a 9×9-inch baking dish, spreading it out evenly. Pat with a paper towel if extra moisture is present.
  4. In a separate bowl, mix the rolled oats, flour, light and dark brown sugars, cinnamon, and salt until well combined.
  5. Cut the cold butter into the oat mixture using a pastry cutter, fork, or fingers until crumbly with pea-sized butter bits.
  6. Sprinkle the topping evenly over the rhubarb filling without pressing down.
  7. Bake for 35-40 minutes until the topping is golden brown and the filling is bubbling around the edges.
  8. Cool slightly before serving to allow the filling to thicken.

Notes

Keep the butter cold to ensure a crunchy topping. Do not press the topping down to allow it to crisp properly. If topping browns too quickly, tent with foil. Adjust sugar to balance tartness. Can add seasonal fruits like strawberries or blueberries. For gluten-free, substitute flour with almond flour. For vegan, use plant-based butter and alternative sweeteners.

Nutrition

Keywords: rhubarb crisp, rhubarb dessert, oat topping, brown sugar crisp, spring dessert, easy rhubarb recipe, gluten-free option, vegan option