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Easy Tangy Classic Rhubarb Crisp Recipe Perfect for Summer Desserts

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A simple, tangy rhubarb crisp with a sweet, crumbly oat topping that balances tartness and sweetness, perfect for summer desserts.

Ingredients

Scale
  • 4 cups chopped rhubarb stalks (about 500g or 1.1 lbs)
  • 3/4 cup granulated sugar (150g)
  • 3/4 cup all-purpose flour (95g)
  • 1 cup old-fashioned rolled oats (90g)
  • 1/2 cup packed brown sugar (110g)
  • 1 teaspoon ground cinnamon
  • 1/4 teaspoon salt
  • 1/2 cup cold unsalted butter, cut into small cubes (113g or 1 stick)
  • 1 teaspoon vanilla extract (optional)

Instructions

  1. Preheat your oven to 375°F (190°C).
  2. Chop about 4 cups (500g) of fresh rhubarb into roughly 1-inch pieces. In a medium bowl, toss the rhubarb with 3/4 cup (150g) granulated sugar and 3/4 cup (95g) all-purpose flour. Stir in 1 teaspoon vanilla extract if using. Set aside.
  3. In a separate bowl, combine 1 cup (90g) rolled oats, 1/2 cup (110g) packed brown sugar, 1 teaspoon ground cinnamon, and 1/4 teaspoon salt. Add 1/2 cup (113g) cold unsalted butter cubes and blend with a pastry cutter, fork, or fingers until crumbly with pea-sized clumps.
  4. Spread the rhubarb filling evenly in an 8×8 inch (20×20 cm) baking dish. Sprinkle the oat topping evenly over the rhubarb, covering the fruit completely.
  5. Bake in the preheated oven for 40-45 minutes until the topping is golden brown and the rhubarb filling is bubbling around the edges.
  6. Let the crisp rest for about 10 minutes before serving to allow the filling to set.

Notes

Use cold butter for a crumbly topping. If topping browns too quickly, cover loosely with foil for the last 10 minutes. Adjust sugar to taste depending on rhubarb tartness. Flour thickens the filling; add cornstarch for extra thickness if desired. The crisp is delicious warm or chilled and reheats well. For gluten-free, substitute almond flour and certified gluten-free oats. For dairy-free, use coconut oil or vegan butter.

Nutrition

Keywords: rhubarb crisp, summer dessert, easy rhubarb recipe, tangy dessert, oat topping, classic crisp, fruit crisp