Easy Rhubarb Crisp – Simple Homemade Rhubarb Dessert

A delightfully simple and comforting homemade dessert, this Easy Rhubarb Crisp features a sweet and tangy rhubarb filling topped with a golden, buttery oat crumble. Perfect for any occasion.

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Prep Time 15

Cook Time 40

Cooling Time 10

Total Time 55

Servings: 6 servings

Course: Dessert

Cuisine: American

Ingredients Equipment Method Notes

Ingredients

Rhubarb Filling

4 cups fresh rhubarb Ensure rhubarb is fresh and firm for best texture, chopped into 1-inch pieces.
3/4 cup granulated sugar Adjust sweetness to your preference, especially if rhubarb is very tart.
2 tablespoons cornstarch Helps thicken the filling; can substitute with all-purpose flour if needed.
1 tablespoon lemon juice Brightens the flavor and balances the sweetness of the rhubarb.

Crisp Topping

1 cup rolled oats Use old-fashioned rolled oats for the best crisp topping texture.
3/4 cup all-purpose flour Provides structure and a pleasant crumbly texture to the topping.
1/2 cup brown sugar Adds a deeper, caramel-like flavor and moisture to the topping.
1/2 cup unsalted butter Keep butter cold and cubed to achieve a perfectly crumbly topping.
1/2 teaspoon cinnamon Enhances the warm, comforting flavor of the dessert; optional but recommended.
1/2 teaspoon vanilla extract Adds a touch of aromatic sweetness; use pure vanilla extract for best results.

Equipment

Baking Dish

Method

Preheat the oven to 375°F (190°C) and lightly grease a baking dish.
Place the chopped rhubarb in a large mixing bowl.
Add granulated sugar, cornstarch, and lemon juice to the rhubarb, then stir to coat the rhubarb evenly.
Transfer the rhubarb mixture into the prepared baking dish and spread evenly.
In another bowl, combine rolled oats, flour, brown sugar, and cinnamon.
Add the cold cubed butter to the dry ingredients and mix until the mixture forms coarse crumbs. You can use your fingers, a pastry blender, or a food processor.
Sprinkle the crisp topping evenly over the rhubarb filling in the baking dish.
Bake in the preheated oven for 35–40 minutes until the topping is golden brown and the filling is bubbling around the edges.
Remove from the oven and allow the crisp to cool for about 10 minutes before serving.
Serve warm with vanilla ice cream or whipped cream if desired for an extra treat.

Notes

This crisp is best enjoyed warm. Feel free to adjust the amount of sugar in the filling based on the tartness of your rhubarb and your personal preference. For a gluten-free version, use gluten-free oats and an all-purpose gluten-free flour blend for the topping.