Easy Rhubarb Crisp Recipe

There’s something undeniably nostalgic about the tangy sweetness of rhubarb crisp. Growing up, every summer meant two things at my grandmother’s house—sun-kissed afternoons in the garden and the irresistible aroma of bubbling rhubarb crisp wafting from the oven. This dish was more than dessert—a celebration of the season, a sweet reward after hours of picking fresh rhubarb stalks.

Inspired by those cherished moments and perfected over time, this rhubarb crisp recipe is a tribute to classic American summer baking. It’s simple, vibrant, and lets rhubarb shine with its signature zing, all while being enveloped in a golden, buttery oat topping. Whether you serve it with vanilla ice cream or a dollop of whipped cream, it’s pure summer on a plate.

Why Rhubarb Crisp is a Must-Try Summer Dessert

Rhubarb crisp combines the rustic charm of traditional fruit desserts with a unique tartness that’s hard to replicate. While many fruits lean towards sweetness, rhubarb brings an exciting punch that wakes your palate. And when baked beneath a buttery, cinnamon-spiced crumble, it creates a downright irresistible balance.

Benefits of Making Rhubarb Crisp:

  • Seasonal Simplicity: Rhubarb is in season from late spring through summer, making it the ideal star for seasonal desserts.
  • Minimal Ingredients: Most of the items are pantry staples—oats, flour, butter, sugar.
  • Quick and Easy: Prepped and in the oven in under 15 minutes.
  • Flexible: Pairs beautifully with strawberries, apples, or even peaches for variety.

Ingredients You’ll Need

For the Rhubarb Filling:

  • 4 cups rhubarb, chopped into ½ inch pieces
  • ½ cup granulated sugar
  • 2 tbsp cornstarch (or all-purpose flour)
  • 1 tsp vanilla extract
  • 1 tbsp lemon juice (optional, enhances tartness)

For the Crisp Topping:

  • ¾ cup rolled oats
  • ½ cup all-purpose flour
  • ⅓ cup brown sugar
  • ½ tsp ground cinnamon
  • ¼ tsp salt
  • ½ cup unsalted butter, cold and cubed

Step-by-Step Instructions

Step 1: Preheat Your Oven

Preheat your oven to 375°F (190°C). Grease a 9-inch baking dish lightly with butter or non-stick spray.

Step 2: Prepare the Rhubarb Filling

In a large bowl, toss the chopped rhubarb with sugar, cornstarch, vanilla extract, and lemon juice. Stir until the rhubarb is evenly coated and the sugar begins to dissolve. Pour the mixture into the greased baking dish and spread it out evenly.

Step 3: Make the Crisp Topping

In another bowl, combine oats, flour, brown sugar, cinnamon, and salt. Add the cold cubed butter and use your fingertips or a pastry cutter to work the butter into the mixture until it resembles coarse crumbs.

Step 4: Assemble and Bake

Sprinkle the oat topping evenly over the rhubarb mixture. Place the dish on a baking sheet to catch any drips, and bake for 35–40 minutes, or until the topping is golden brown and the filling is bubbling around the edges.

Step 5: Cool and Serve

Let the crisp cool for at least 15 minutes before serving. This resting time helps the filling set and enhances the flavour.

Serving Suggestions

  • Vanilla Ice Cream: The creamy sweetness pairs beautifully with the tangy rhubarb.
  • Whipped Cream: Light and airy, it adds a luxurious touch.
  • Yogurt: For a breakfast-worthy version, try it with Greek yogurt.

Tips for the Best Rhubarb Crisp

  • Fresh Rhubarb is Key: Use firm, brightly colored stalks. Avoid the leaves—they’re toxic.
  • Balance Sweet and Tart: Adjust sugar depending on the natural tartness of your rhubarb.
  • Add a Twist: Mix in strawberries for a classic combination, or apples for extra texture.
  • Crumb Topping Texture: Use cold butter to keep the topping crisp and crumbly.
  • Make Ahead: You can prepare the filling and topping separately and refrigerate until ready to bake.

Variations to Try

  • Strawberry Rhubarb Crisp: Add 2 cups of sliced strawberries.
  • Apple Rhubarb Crisp: Substitute 1 cup of rhubarb with diced Granny Smith apples.
  • Nutty Crunch: Add chopped walnuts or pecans to the topping for extra crunch.
  • Gluten-Free Option: Use gluten-free oats and almond flour.

Storing and Reheating

  • Refrigerator: Store leftovers in an airtight container for up to 4 days.
  • Freezer: Freeze for up to 2 months. Reheat directly from frozen in a 350°F oven.
  • To Reheat: Warm in the oven at 325°F until heated through for a crisp topping.

Final Thoughts

Rhubarb crisp is one of those timeless recipes that never go out of style. It’s comforting, bold in flavour, and a true reflection of summer’s bounty. Whether you’re hosting a backyard barbecue or just want a cozy dessert for a quiet evening, this dish delivers every time. From my family to yours, enjoy the bright, tangy delight of a homemade rhubarb crisp.

Share Your Twist!

Did you try this rhubarb crisp recipe? Add your spin and let us know how it turned out in the comments! We’d love to see photos or hear about your favourite pairings.

Explore More

For more summer dessert inspiration, explore these wonderful resources. Learn the basics of cultivating your rhubarb in this detailed guide on
how to grow and harvest rhubarb. Curious about the health aspects of this vibrant vegetable? Check out the
nutritional benefits of rhubarb. If you love combining fruits, discover why strawberries make the perfect match in this classic
strawberry rhubarb crisp recipe. Need a gluten-free twist? Try this delicious
gluten-free rhubarb crisp. And for a delightful cookie variation using the same key ingredient, don’t miss our very own
brown sugar rhubarb cookies.

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