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Cozy Frozen Rhubarb Crisp Recipe with Easy Brown Sugar Oat Topping

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A warm and comforting rhubarb crisp made with frozen rhubarb and a simple brown sugar oat topping, perfect for cozy nights and quick desserts.

Ingredients

Scale
  • 4 cups frozen rhubarb (about 450g)
  • ½ cup granulated sugar (100g)
  • ½ cup packed brown sugar (110g), divided
  • 1 cup rolled oats (90g)
  • ¾ cup all-purpose flour (90g)
  • 1 teaspoon ground cinnamon
  • Pinch of salt
  • ½ cup cold unsalted butter (113g), cut into small pieces
  • 1 teaspoon vanilla extract
  • 1 tablespoon freshly squeezed lemon juice

Instructions

  1. Preheat your oven to 375°F (190°C).
  2. In a medium bowl, combine the frozen rhubarb (no need to thaw), granulated sugar, ¼ cup (55g) brown sugar, lemon juice, and vanilla extract. Stir gently until the rhubarb is evenly coated.
  3. Transfer the rhubarb mixture to a 9×9 inch (23×23 cm) baking dish and spread evenly. If the rhubarb is frozen solid, let it sit for 5 minutes to release some juices but do not thaw completely.
  4. In a separate bowl, whisk together the rolled oats, all-purpose flour, remaining ¼ cup (55g) brown sugar, ground cinnamon, and salt.
  5. Cut the cold butter into the dry topping mixture using a pastry cutter or two forks until it resembles coarse crumbs with some pea-sized pieces.
  6. Sprinkle the oat topping evenly over the rhubarb mixture without packing it down.
  7. Bake for 40-45 minutes, checking after 35 minutes. The topping should be golden brown and the filling bubbly. If the topping browns too quickly, loosely cover with foil for the last 10 minutes.
  8. Remove from oven and let cool for at least 15 minutes before serving.

Notes

Use cold butter cut into the dry ingredients to keep the topping flaky and crunchy. Avoid stirring the filling once in the baking dish to prevent sogginess. Let the crisp cool for 15 minutes before serving to thicken the filling. For gluten-free, substitute all-purpose flour with almond or gluten-free flour. For vegan, use dairy-free butter and coconut sugar. Adding chopped nuts to the topping adds crunch and flavor.

Nutrition

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

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