Easy Rhubarb Crisp Recipe with Oat Topping
Easy Rhubarb Crisp with Oat Topping is the perfect dessert for rhubarb season. After making this many times, I discovered the secret to a golden, crispy topping. Jump to the recipe card or keep reading for my best tips. If you love recipes like this, you’ll also enjoy Easy High Protein Beef and Broccoli Rice Bowls for Meal Prep and Creamy Pandan Coconut Overnight Oats with Mango Drizzle.
Why This Easy Rhubarb Crisp Recipe with Oat Topping Is Pure Comfort
- Golden, crispy oat topping
- Tart rhubarb filling balances sweetness
- Better than takeout, easy to make
- Perfect for rhubarb season
What You'll Need for Easy Rhubarb Crisp Recipe with Oat Topping
Choosing the right ingredients makes a big difference, but this recipe is forgiving enough to work with what you have.
- Rhubarb
- Sugar
- Oats
- Flour
- Butter
- Vanilla Extract
- Cinnamon
- Salt
- Optional: Vanilla Ice Cream
- Optional: Whipped Cream
đź“ť Ingredient Notes
- Rhubarb: Use firm, red stalks for best flavor.
- Butter: Cold butter is key to a flaky topping.
đź›’ Tools & Equipment I Recommend
- Food Processor — Quickly chops rhubarb and mixes topping. → See on Amazon
- Pyrex Glass Dish — Even baking and easy serving. → See on Amazon
How to Make Easy Rhubarb Crisp Recipe with Oat Topping
- Prepare Rhubarb: Preheat oven to 375°F. Cut rhubarb into 1-inch pieces. Mix with 1/2 cup sugar, 1 tbsp flour, and 1 tsp vanilla. Transfer to a greased 8×8-inch dish.
- Make Topping: In a food processor, combine 1 cup oats, 1/2 cup flour, 1/2 cup brown sugar, 1/2 tsp cinnamon, and 1/4 tsp salt. Pulse while adding 1/2 cup cold butter until crumbly.
- Bake: Sprinkle topping over rhubarb. Bake for 30-35 minutes, until golden and bubbly.
Cook's Tips for Perfect Easy Rhubarb Crisp Recipe with Oat Topping
- Common mistake and fix: Don't overmix the topping. It should be crumbly, not doughy.
- Pro tip: For a sweeter crisp, use 3/4 cup sugar in the filling.
- Pro tip: Add 1/2 cup chopped nuts to the topping for extra crunch.
- Pro tip: Serve with vanilla ice cream or whipped cream for a decadent treat.
Storing & Reheating Easy Rhubarb Crisp Recipe with Oat Topping
Short-Term Storage
Store in an airtight container in the fridge. Store leftovers in the fridge for up to 5 days. Make-ahead tip: Prepare the filling and topping separately, then assemble and bake when ready.
Freezing Easy Rhubarb Crisp Recipe with Oat Topping
Freeze individual portions for up to 3 months.
How to Reheat Without Drying It Out
Oven: Reheat in the oven at 350°F for 15-20 minutes. Microwave: Reheat in the microwave for 1-2 minutes.
Recipe Notes
- Chef tip: For a gluten-free version, use certified gluten-free oats and flour.
- Best substitution: Substitute rhubarb with apples for a different flavor profile.
- Make-ahead: Prepare the filling and topping separately, then assemble and bake when ready.
- Scaling: This recipe can be doubled and baked in a 9×13-inch dish.
- Troubleshooting: If the topping is too dry, add more butter. If the filling is too runny, add more flour.
Want to level up this recipe?
Silicone Baking Mat — Prevents sticking and promotes even baking. → Check price on Amazon
Easy Rhubarb Crisp Recipe with Oat Topping
Ingredients
Main Ingredients
- Rhubarb
- Sugar
- Oats
- Flour
- Butter
Seasonings
- Vanilla Extract
- Cinnamon
- Salt
Optional Toppings
- Vanilla Ice Cream
- Whipped Cream
Instructions
- Prepare Rhubarb: Preheat oven to 375°F. Cut rhubarb into 1-inch pieces. Mix with 1/2 cup sugar, 1 tbsp flour, and 1 tsp vanilla. Transfer to a greased 8×8-inch dish.
- Make Topping: In a food processor, combine 1 cup oats, 1/2 cup flour, 1/2 cup brown sugar, 1/2 tsp cinnamon, and 1/4 tsp salt. Pulse while adding 1/2 cup cold butter until crumbly.
- Bake: Sprinkle topping over rhubarb. Bake for 30-35 minutes, until golden and bubbly.
Notes
- Chef tip: For a gluten-free version, use certified gluten-free oats and flour.
- Best substitution: Substitute rhubarb with apples for a different flavor profile.
- Make-ahead: Prepare the filling and topping separately, then assemble and bake when ready.
- Scaling: This recipe can be doubled and baked in a 9×13-inch dish.
- Troubleshooting: If the topping is too dry, add more butter. If the filling is too runny, add more flour.
Storage
- Fridge: Store leftovers in the fridge for up to 5 days.
- Freezer: Freeze individual portions for up to 3 months.
- Oven reheat: Reheat in the oven at 350°F for 15-20 minutes.
- Microwave reheat: Reheat in the microwave for 1-2 minutes.
- Make ahead: Prepare the filling and topping separately, then assemble and bake when ready.
Nutrition Per Serving
- Calories: 280
- Protein: 3g
- Fat: 10g
- Carbs: 45g
- Fiber: 3g
- Sugar: 28g
- Sodium: 120mg
- Cholesterol: 25mg
- Sat. Fat: 6g
Nutritional values are estimates only. Actual values may vary by brand and portion size.
Easy Rhubarb Crisp Recipe with Oat Topping FAQs
Yes, prepare the filling and topping separately, then assemble and bake when ready.
Overcooking can make the topping dry. Watch the baking time closely.
Yes, freeze individual portions for up to 3 months. Thaw in the fridge overnight before reheating.
No, the air fryer is not suitable for this recipe due to the liquid in the filling.
Apples or a combination of strawberries and rhubarb can be used as a substitute.
A Warm Final Note
I can’t wait for you to try Easy Rhubarb Crisp Recipe with Oat Topping and see how effortlessly it comes together. When you make it, pop back here and leave a rating or share how it turned out — I love hearing from you!
