Easy Rhubarb Crisp Recipe with Oat Topping
Easy Rhubarb Crisp with oat topping is the perfect dessert for any occasion. After making this many times, I’ve discovered the trick to the best rhubarb crisp is balancing tart rhubarb with a sweet, crispy topping. Jump to the recipe or keep reading for my best tips. If you love recipes like this, you’ll also enjoy Easy 30-Minute Street Corn Chicken Rice Bowl and Crispy Southern Hushpuppies Recipe for Easy Dinner Sides.
Why This Easy Rhubarb Crisp Recipe with Oat Topping Is Pure Comfort
- Balances tart and sweet flavors
- Crispy oat topping with warm, gooey rhubarb filling
- Easy to make and better than takeout
- Perfect for any occasion, from family dinners to potlucks
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
- sugar
- cinnamon
- vanilla extract
- Optional: vanilla ice cream
- Optional: whipped cream
📝 Ingredient Notes
- rhubarb: Fresh or frozen rhubarb works. No need to thaw frozen.
- sugar: Adjust sugar depending on rhubarb's tartness.
🛒 Tools & Equipment I Recommend
- Food Processor — Quickly chops rhubarb and mixes topping. → See on Amazon
- Pyrex Glass Baking Dish — Even heat distribution for perfect crisp. → See on Amazon
How to Make Easy Rhubarb Crisp Recipe with Oat Topping
- Prepare rhubarb: Preheat oven to 375°F. Chop rhubarb into 1/2-inch pieces. Toss with 1 cup sugar, 1 tbsp flour, and 1 tsp vanilla extract. Transfer to a greased 8×8-inch baking dish.
- Make topping: In a medium bowl, combine 1 cup oats, 1/2 cup flour, 1/2 cup brown sugar, 1/2 tsp cinnamon, and 1/4 tsp salt. Cut in 1/2 cup cold butter until crumbly. Sprinkle over rhubarb.
- Bake: Bake for 35-40 minutes or until golden and bubbly. Let cool 10 minutes before serving.
Cook's Tips for Perfect Easy Rhubarb Crisp Recipe with Oat Topping
- : Use a mix of fresh and frozen rhubarb for best texture.
- Common mistake and fix: Don't overmix the topping. It should be crumbly, not a dough.
- : For a gluten-free version, use certified gluten-free oats and replace flour with almond flour.
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, but it may lose crispiness.
Recipe Notes
- Chef tip: For a tangier crisp, add a squeeze of lemon juice to the rhubarb filling.
- Best substitution: Substitute rhubarb with a mix of strawberries and 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 browning too quickly, tent the dish with foil.
Want to level up this recipe?
Silicone Baking Mat — Prevents sticking and makes cleanup easy. → Check price on Amazon
Easy Rhubarb Crisp Recipe with Oat Topping
Ingredients
Main Ingredients
- rhubarb
- sugar
- oats
- flour
- butter
Seasonings
- sugar
- cinnamon
- vanilla extract
Optional Toppings
- vanilla ice cream
- whipped cream
Instructions
- Prepare rhubarb: Preheat oven to 375°F. Chop rhubarb into 1/2-inch pieces. Toss with 1 cup sugar, 1 tbsp flour, and 1 tsp vanilla extract. Transfer to a greased 8×8-inch baking dish.
- Make topping: In a medium bowl, combine 1 cup oats, 1/2 cup flour, 1/2 cup brown sugar, 1/2 tsp cinnamon, and 1/4 tsp salt. Cut in 1/2 cup cold butter until crumbly. Sprinkle over rhubarb.
- Bake: Bake for 35-40 minutes or until golden and bubbly. Let cool 10 minutes before serving.
Notes
- Chef tip: For a tangier crisp, add a squeeze of lemon juice to the rhubarb filling.
- Best substitution: Substitute rhubarb with a mix of strawberries and 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 browning too quickly, tent the dish with foil.
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, but it may lose crispiness.
- Make ahead: Prepare the filling and topping separately, then assemble and bake when ready.
Nutrition Per Serving
- Calories: 320
- Protein: 4g
- Fat: 12g
- Carbs: 52g
- Fiber: 3g
- Sugar: 37g
- Sodium: 220mg
- Cholesterol: 30mg
- Sat. Fat: 7g
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 crisp dry. Reduce baking time or tent with foil if browning too quickly.
Yes, freeze individual portions for up to 3 months. Thaw and reheat in the oven.
No, the air fryer isn't suitable for this recipe. It's best baked in the oven.
A mix of strawberries and apples can be used as a substitute for rhubarb.
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!
