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Cozy Classic Rhubarb Crisp Recipe with Easy Brown Sugar Oat Topping

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A warm and comforting rhubarb crisp featuring a buttery brown sugar oat topping that balances tart and sweet flavors perfectly. Ideal for spring or summer gatherings and easy to prepare in under 45 minutes.

Ingredients

Scale
  • 4 cups rhubarb, chopped into 1/2-inch pieces (fresh or frozen, thawed)
  • 3/4 cup granulated sugar (adjust based on tartness of rhubarb)
  • 1 tablespoon cornstarch
  • 1 teaspoon vanilla extract
  • 1/2 teaspoon ground cinnamon (optional)
  • 1 cup old-fashioned rolled oats
  • 3/4 cup all-purpose flour (can swap with almond flour for gluten-free)
  • 1 cup packed light brown sugar
  • 1/2 teaspoon salt
  • 1/2 teaspoon ground cinnamon (optional)
  • 1/2 cup unsalted butter, melted and slightly cooled

Instructions

  1. Preheat the oven to 350°F (175°C). Lightly grease a 9×9-inch baking dish with butter or non-stick spray.
  2. In a medium bowl, combine chopped rhubarb, granulated sugar, cornstarch, vanilla extract, and ground cinnamon if using. Stir gently until evenly mixed.
  3. Optional: Toast the oats in a dry skillet over medium heat for 3-5 minutes, stirring frequently until lightly golden and fragrant.
  4. In a separate bowl, whisk together rolled oats, all-purpose flour, light brown sugar, salt, and cinnamon. Pour in melted butter and mix with a wooden spoon until crumbly but sticks together when pressed.
  5. Pour the rhubarb filling into the prepared baking dish and spread evenly. Sprinkle the oat topping evenly over the rhubarb.
  6. Bake for 35-40 minutes until the topping is golden brown and the filling is bubbling. If topping browns too fast, loosely cover with foil halfway through baking.
  7. Let the crisp cool for about 10 minutes before serving to allow the filling to set.

Notes

Toast oats for a richer flavor. Use cornstarch to prevent soggy filling. If topping browns too quickly, cover with foil halfway through baking. Prepare filling and topping ahead and refrigerate separately for convenience. Use gluten-free flour and certified gluten-free oats for gluten-free version. Substitute vegan butter and check brown sugar for vegan adaptation.

Nutrition

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

Find it online: https://daintydine.com/cozy-classic-rhubarb-crisp-recipe-with-easy-brown-sugar-oat-topping/