When rhubarb season rolls in, it’s time to fire up the oven and whip up something irresistibly cozy—like this Easy Rhubarb Crisp. With a golden oat topping and a tart-sweet rhubarb filling, it’s the rhubarb dessert that brings a bit of rustic magic to your spring baking recipe collection.

Perfect for using up an armful of garden rhubarb or dazzling guests at a weekend gathering, this easy fruit crisp is comforting, simple, and downright delicious.

Why You’ll Love This Easy Rhubarb Crisp

It’s the kind of dessert that feels both nostalgic and exciting. The crisp topping is buttery and spiced with cinnamon, while the rhubarb bakes into a luscious, jammy base. Best of all? No pie crust fuss. Just layer, bake, and enjoy every bubbling bite.

Ingredients:

1 cup (125 g) all-purpose flour
1 cup (200 g) brown sugar
¾ cup (75 g) oats
½ cup (115 g) melted butter
1 tsp ground cinnamon
4 cups (480 g) diced rhubarb
1 cup (200 g) white sugar
1 cup (240 ml) water
2 tbsp (16 g) cornstarch
1 tsp vanilla extract

How to Make It:

Preheat oven to 175°C (350°F). Lightly grease a 9×13-inch (23×33 cm) baking dish.
In a bowl, mix flour, brown sugar, oats, melted butter, and cinnamon until crumbly.
Press half the oat mixture into the baking dish to form a crust.
Spread diced rhubarb evenly over the crust.
In a saucepan, whisk sugar, water, cornstarch, and vanilla. Bring to a boil, stirring until thickened (about 5 minutes).
Pour the thickened sauce over the rhubarb.
Sprinkle the remaining oat mixture on top.
Bake for 60–65 minutes until golden and bubbling.
Let cool slightly before serving. Best warm with vanilla ice cream.

Tips for the Best Rhubarb Crisp

Use fresh rhubarb for the best texture. If using frozen, thaw and drain well.
Adjust sugar to taste if your rhubarb is extra tart.
Add chopped strawberries for a fun flavor twist.
Make ahead and reheat gently for easy entertaining.

Why This Crisp is My Springtime Staple

I first made this crisp on a rainy spring afternoon, and it instantly became my go-to rhubarb dessert. It’s a hit with my family, who love the warm topping and zingy filling. We always serve it with ice cream, and seconds are guaranteed.

What to Serve with Rhubarb Crisp

Pair it with vanilla ice cream, whipped cream, or even a spoonful of Greek yogurt for brunch. It’s equally lovely served warm or cold, and makes a sweet ending to any meal.

How to Store Leftovers

Store in an airtight container in the fridge for up to 4 days. Reheat individual servings in the microwave or warm the whole dish in a low oven. It also freezes well for future cravings.

FAQs

Can I make this gluten-free?

Yes—use a 1:1 gluten-free flour blend and certified GF oats.

Can I cut back on sugar?

You can reduce the white sugar slightly, but it balances the tartness of rhubarb.

Can I use a different fruit?

Definitely! Try adding apples, pears, or berries alongside the rhubarb.

Can I make it vegan?

Yes! Swap butter for a plant-based alternative.

The Rhubarb Dessert Everyone Will Request Again

Easy Rhubarb Crisp is everything spring baking should be: fresh, simple, and irresistibly cozy. With its sweet, tangy filling and golden oat topping, this crisp is sure to become your go-to recipe every rhubarb season.

Easy Rhubarb Crisp: A Tart and Toasty Spring Baking Favorite

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Author: Amanda Thompson
Total Time: 1 hour 20 minutes
Yield: 8 servings 1x
Diet: Vegetarian

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Description

Easy Rhubarb Crisp is a classic spring dessert featuring tart rhubarb baked under a golden, cinnamon-spiced oat topping. With no need for pie crust, this rustic fruit crisp is simple, cozy, and perfect for showcasing seasonal rhubarb. Serve it warm with a scoop of vanilla ice cream for a truly irresistible treat.

Ingredients

Scale

1 cup (125 g) all-purpose flour
1 cup (200 g) brown sugar
¾ cup (75 g) oats
½ cup (115 g) melted butter
1 tsp ground cinnamon
4 cups (480 g) diced rhubarb
1 cup (200 g) white sugar
1 cup (240 ml) water
2 tbsp (16 g) cornstarch
1 tsp vanilla extract

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Instructions

Preheat oven to 175°C (350°F). Lightly grease a 9×13-inch (23×33 cm) baking dish.
In a bowl, combine flour, brown sugar, oats, melted butter, and cinnamon until crumbly.
Press half of the oat mixture into the baking dish to form a crust.
Spread diced rhubarb evenly over the crust.
In a saucepan, whisk together white sugar, water, cornstarch, and vanilla. Bring to a boil and stir until thickened (about 5 minutes).
Pour the sauce evenly over the rhubarb.
Sprinkle the remaining oat mixture on top.
Bake for 60–65 minutes until golden and bubbly.
Cool slightly before serving. Best enjoyed warm with ice cream.

Notes

Fresh rhubarb gives the best texture; thaw and drain if using frozen.

Add strawberries or other fruits to mix things up.

Adjust sugar depending on rhubarb tartness.