Easy Rhubarb Crisp Recipe with Buttery Oat Crumble
This Easy Rhubarb Crisp Recipe with Buttery Oat Crumble features a sweet-tart rhubarb filling topped with a golden, crunchy oat topping. Simple to make with pantry staples, this classic rhubarb dessert is perfect for family gatherings, potlucks, or weeknight treats.
Ingredients
For the Rhubarb Filling
- 6 cups fresh rhubarb chopped into ½-inch pieces
- ¾ cup granulated sugar
- 2 tablespoons cornstarch
- 1 teaspoon vanilla extract
- 1 tablespoon lemon juice
For the Buttery Oat Crumble
- 1 cup old-fashioned rolled oats
- ¾ cup all-purpose flour
- ¾ cup brown sugar
- ½ teaspoon ground cinnamon
- ¼ teaspoon salt
- ½ cup unsalted butter melted
Instructions
- Step 1: Prepare the Oven Preheat your oven to 375°F (190°C). Lightly grease a 9-inch baking dish or an 8x8-inch square baking pan.
- Step 2: Prepare the Rhubarb Filling Wash and trim the rhubarb stalks thoroughly. Cut them into small pieces. In a large mixing bowl, combine: Chopped rhubarb Granulated sugar Cornstarch Vanilla extract Lemon juice Mix until the rhubarb is evenly coated.
- Step 3: Transfer to Baking Dish Pour the rhubarb mixture into the prepared baking dish and spread evenly.
- Step 4: Make the Oat Crumble In a separate bowl, combine: Rolled oats Flour Brown sugar Cinnamon Salt Pour in the melted butter and stir until crumbly.
- Step 5: Add Topping Sprinkle the crumble mixture evenly over the rhubarb filling, covering the entire surface.
- Step 6: Bake Place the dish in the preheated oven and bake for 40-45 minutes. The crisp is ready when: The topping is golden brown. The rhubarb filling is bubbling around the edges.
- Step 7: Cool and Serve Allow the crisp to cool for about 10-15 minutes before serving. This helps the filling thicken slightly.
Notes
1. For the best texture, let the rhubarb crisp cool for 10–15 minutes before serving so the filling can thicken properly.
2. If using frozen rhubarb, thaw and drain excess liquid first to prevent a watery crisp.
3. Serve warm with vanilla ice cream or whipped cream for an extra delicious dessert experience.