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Easy Rhubarb and Oat Crisp Recipe with Brown Sugar Streusel

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A simple and satisfying summer dessert featuring tart rhubarb and a crunchy brown sugar oat streusel topping. Ready in under 45 minutes, this crisp is perfect for spontaneous dinners or potlucks.

Ingredients

Scale
  • 4 cups rhubarb, chopped into 1-inch pieces (about 500g fresh rhubarb)
  • 3/4 cup granulated sugar
  • 1 tablespoon cornstarch
  • 1 teaspoon vanilla extract
  • 1 cup old-fashioned oats
  • 1/2 cup all-purpose flour (can substitute almond flour for gluten-free)
  • 1/2 cup packed brown sugar (preferably dark brown sugar)
  • 1/2 teaspoon ground cinnamon (optional)
  • 1/4 teaspoon salt
  • 6 tablespoons unsalted butter, melted (can use dairy-free butter)

Instructions

  1. Rinse the rhubarb stalks under cool water and pat dry. Chop into 1-inch pieces.
  2. In a large bowl, combine chopped rhubarb, granulated sugar, cornstarch, and vanilla extract. Stir gently until evenly coated.
  3. In a medium bowl, mix oats, flour, brown sugar, cinnamon, and salt. Pour in melted butter and stir until crumbly but evenly moistened.
  4. Pour the rhubarb filling into a 9-inch square baking dish, spreading evenly.
  5. Sprinkle the oat streusel topping evenly over the filling without pressing down.
  6. Bake in a preheated oven at 350°F (175°C) for 35 to 40 minutes until topping is golden brown and filling bubbles around edges. If topping browns too quickly, loosely cover with foil halfway through baking.
  7. Let the crisp rest for 10 to 15 minutes before serving to thicken the filling.

Notes

If rhubarb is very juicy, increase cornstarch by 1-2 teaspoons to prevent watery filling. Use dark brown sugar for richer flavor. If topping browns too fast, tent with foil halfway through baking. Frozen rhubarb can be used after thawing and draining excess liquid. Variations include adding berries, nuts, or spices. Leftovers can be refrigerated for up to 3 days or frozen for up to a month.

Nutrition

Keywords: rhubarb crisp, oat crisp, brown sugar streusel, summer dessert, easy dessert, fruit crisp, rhubarb dessert

Find it online: https://lyrafeast.com/easy-rhubarb-and-oat-crisp-recipe-with-brown-sugar-streusel-perfect-for-summer-desserts/