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’ve discovered the trick 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 Refreshing Strawberry Matcha Sago Dessert and Creamy Crock Pot Chicken Parmesan Soup with Tortellini.
Why This Easy Rhubarb Crisp Recipe with Oat Topping Is Pure Comfort
- Golden, crispy oat topping
- Tangy, sweet rhubarb filling
- 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: Whipped Cream
- Optional: Ice Cream
📝 Ingredient Notes
- Rhubarb: Fresh or frozen works, just adjust sugar if using frozen.
🛒 Tools & Equipment I Recommend
- Food Processor — Quickly chops rhubarb and mixes topping. → See on Amazon
- Pyrex Glass Baking Dish — Even heating for perfect crisp topping. → See on Amazon
How to Make Easy Rhubarb Crisp Recipe with Oat Topping
- Prepare Rhubarb: Chop rhubarb into 1-inch pieces, mix with sugar, and let sit for 15 minutes.
- Make Topping: Combine oats, flour, brown sugar, cinnamon, and salt. Cut in butter until crumbly.
- Assemble: Transfer rhubarb to baking dish, top with oat mixture.
- Bake: Bake at 375°F (190°C) for 25-30 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.
- Tip: For a gluten-free version, use certified gluten-free oats and replace flour with almond flour.
- Tip: Add a handful of berries for a mixed fruit crisp.
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: You can prepare the crisp up to a day ahead and bake just before serving.
Freezing Easy Rhubarb Crisp Recipe with Oat Topping
Freeze unbaked crisp for up to 3 months.
How to Reheat Without Drying It Out
Oven: Reheat in the oven at 350°F (180°C) for 15-20 minutes. Microwave: Reheat in the microwave for 1-2 minutes, then broil for 2-3 minutes for crispy topping.
Recipe Notes
- Chef tip: For a tangier crisp, add a squeeze of lemon juice to the rhubarb.
- Best substitution: Substitute strawberries for half the rhubarb for a sweeter crisp.
- Make-ahead: Bake the crisp, let it cool, then refrigerate. Reheat before serving.
- Scaling: This recipe can be easily doubled or halved.
- 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
- Vanilla Extract
- Cinnamon
- Salt
Optional Toppings
- Whipped Cream
- Ice Cream
Instructions
- Prepare Rhubarb: Chop rhubarb into 1-inch pieces, mix with sugar, and let sit for 15 minutes.
- Make Topping: Combine oats, flour, brown sugar, cinnamon, and salt. Cut in butter until crumbly.
- Assemble: Transfer rhubarb to baking dish, top with oat mixture.
- Bake: Bake at 375°F (190°C) for 25-30 minutes, until golden and bubbly.
Notes
- Chef tip: For a tangier crisp, add a squeeze of lemon juice to the rhubarb.
- Best substitution: Substitute strawberries for half the rhubarb for a sweeter crisp.
- Make-ahead: Bake the crisp, let it cool, then refrigerate. Reheat before serving.
- Scaling: This recipe can be easily doubled or halved.
- 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 unbaked crisp for up to 3 months.
- Oven reheat: Reheat in the oven at 350°F (180°C) for 15-20 minutes.
- Microwave reheat: Reheat in the microwave for 1-2 minutes, then broil for 2-3 minutes for crispy topping.
- Make ahead: You can prepare the crisp up to a day ahead and bake just before serving.
Nutrition Per Serving
- Calories: 260
- Protein: 3g
- Fat: 10g
- Carbs: 40g
- Fiber: 3g
- Sugar: 25g
- Sodium: 100mg
- 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, just adjust sugar and add a few minutes to baking time.
Too much liquid or not baking long enough can cause a soggy topping. Adjust sugar and baking time accordingly.
No, the air fryer isn't suitable for this recipe due to the liquid in the rhubarb.
Store in the fridge for up to 5 days or freeze for up to 3 months.
Yes, prepare the crisp up to a day ahead and bake just before serving.
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!
