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Easy Tangy Rhubarb Crisp Recipe with Almond Flour Crumble Perfect for Spring

tangy rhubarb crisp - featured image

A simple and quick rhubarb crisp featuring a tangy rhubarb filling and a nutty almond flour crumble topping, perfect for springtime desserts.

Ingredients

Scale
  • 4 cups rhubarb, chopped into 1/2-inch pieces (about 450g or 1 lb)
  • 3/4 cup granulated sugar (150g)
  • 2 tablespoons cornstarch or arrowroot powder
  • 1 teaspoon vanilla extract
  • 1 tablespoon fresh lemon juice
  • 1 1/2 cups almond flour (150g)
  • 1/3 cup brown sugar, packed (65g)
  • 1/4 teaspoon ground cinnamon (optional)
  • 1/4 teaspoon salt
  • 6 tablespoons unsalted butter, cold and cubed (85g or 6 tablespoons)
  • 1/4 cup sliced almonds (optional)

Instructions

  1. Preheat your oven to 350°F (175°C).
  2. In a medium bowl, combine chopped rhubarb, granulated sugar, cornstarch, vanilla extract, and lemon juice. Mix gently until all pieces are coated.
  3. Transfer the rhubarb mixture evenly into a 9×9-inch baking dish and spread it out evenly.
  4. In a separate bowl, mix almond flour, brown sugar, cinnamon, and salt.
  5. Add the cold, cubed butter to the almond flour mixture. Using a pastry cutter, fork, or fingertips, cut the butter into the dry ingredients until the mixture resembles coarse crumbs with pea-sized bits.
  6. Fold in the sliced almonds if using.
  7. Sprinkle the crumble evenly over the rhubarb layer without pressing down.
  8. Bake for 35-40 minutes until the topping is golden brown and bubbling around the edges.
  9. Cool for at least 15 minutes before serving to allow the filling to thicken.

Notes

Use cold butter to keep the crumble crisp and flaky. If topping browns too quickly, tent with foil halfway through baking. For a dairy-free option, substitute butter with coconut oil. You can microwave rhubarb for 2 minutes to soften if short on time. Leftovers keep well refrigerated for up to 3 days and can be reheated in the microwave and broiled briefly to refresh the topping.

Nutrition

Keywords: rhubarb crisp, almond flour crumble, spring dessert, gluten-free dessert, easy rhubarb recipe, tangy rhubarb crisp, almond crumble topping