Rhubarb Crisp Recipe: A Cozy, Tangy Dessert Anyone Can Make

Let Me Tell You About My Favorite Way to Tackle Too Much Rhubarb

Okay, friend, settle in—I’ve made this rhubarb crisp recipe more times than I’d care to admit (especially when the neighbor’s rhubarb patch is suddenly exploding and they’re looking at me like, well, you know what to do, right?). I’ll never forget the first time I tried to impress my gran with it. I nervously overdid the sugar, ended up with a sticky mess, and still—somehow—it was devoured before dinner. Go figure. That’s the magic: it doesn’t have to be perfect, and honestly, that’s half the charm! Plus, if you ever need a dessert that says “I tried, but not too hard,” this is it.

Why You’ll Love This (Seriously, It’s a Keeper)

I make this recipe whenever I want a dessert that feels like a hug (especially when it’s rainy or just, you know, one of those Mondays). My family actually fights over the crispy bits, and I have to shoo them away from the dish before it’s cooled. Oh, and don’t get me started on how good it smells—like, why isn’t there a rhubarb crisp candle yet? Sometimes the only annoying part is chopping rhubarb (it’s like celery’s grumpy cousin), but I promise it’s worth it.

What You’ll Need (And What You Can Sub If You’re in a Pinch)

• 4 cups chopped rhubarb (fresh is best, but frozen works—just thaw first. I sometimes toss in a handful of strawberries if I’m short.)
• 3/4 cup white sugar (my gran used brown, honestly either is fine; I even cut it to 1/2 cup when I’m feeling wild)
• 1 tablespoon cornstarch (or plain flour if you’re out—but it’ll be a bit cloudier)
• 1 teaspoon vanilla extract (the real deal or, honestly, whatever cheap bottle is in the cupboard—no judgment)
• 1 cup old-fashioned oats (quick oats are okay, but it’s less chunky. Gran insisted on Quaker, but who’s checking?)
• 3/4 cup all-purpose flour
• 2/3 cup brown sugar
• 1/2 teaspoon cinnamon (sometimes I add a pinch of nutmeg, just for fun)
• 1/2 cup butter, cold and cubed (I’ve even used margarine when desperate, and it worked)
• Pinch of salt

Let’s Make It (Don’t Worry If It Looks Weird)

1. Preheat your oven to 180°C/350°F. Look, sometimes I forget and do this right before baking, and it still works out—just pretend like it was the plan all along.
2. In a biggish bowl, toss your chopped rhubarb with white sugar, cornstarch, and vanilla. This is where it starts looking odd—kind of slimy, but don’t panic. It’s normal. Pour this into a baking dish (about 8×8 or whatever you’ve got—sometimes I use a pie dish).
3. In another bowl (or the same one if you’re feeling lazy, just give it a quick wipe), mix together oats, flour, brown sugar, cinnamon, and that pinch of salt. Add the cold butter and use your fingers or a pastry cutter to squish it all together until it’s crumbly. If you’ve got warm hands like me, work fast or stick it in the fridge for a minute so it doesn’t get too melty.
4. Scatter the crumbly mixture over the rhubarb. Try to cover it evenly, but if there are gaps, so what? Rustic is in.
5. Bake for 35-40 minutes or until the top is golden and you see bubbly pink juice around the edges. This is where I usually sneak a taste (careful, it’s hotter than the sun).

Notes from Slightly Too Many Attempts

• Once, I forgot to add the cornstarch, and the filling was runny—but still tasty over ice cream. So, don’t sweat it if you’re missing an ingredient or two.
• Actually, I find it works better if you let it cool at least 15 minutes before serving (but who am I kidding, we usually dig in early anyway).
• I tried using coconut oil instead of butter once—eh, not my favorite, but it’s doable.

Let Me Pitch You Some Variations

• Add strawberries with the rhubarb for a sweeter, less tart filling (the color is wild, too).
• I’ve swapped in chopped apples or even a handful of frozen blueberries when I didn’t have enough rhubarb—turns out, this crisp is pretty forgiving.
• Once, I tried almond flour in the topping. It tasted great but fell apart like nobody’s business. So…maybe don’t try that unless you’re okay with a mess.

Don’t Stress About Equipment

• Honestly, you don’t need fancy gear. I’ve used everything from a glass Pyrex dish to an old cast iron pan (cast iron gives the edges a nice crunch, actually).
• No pastry cutter? Two forks or even your (clean!) hands work just fine.

How Long Does It Last? (Spoiler: Not Long)

You could store leftovers in the fridge, covered, for up to 3 days. But, to be honest, it never makes it past breakfast in my house. If you want to freeze it, I’d suggest baking it first and reheating later, though the topping loses a bit of crunch.

How We Eat It (And You Should Too!)

We’re big on serving this warm, preferably with a big dollop of vanilla ice cream or, if I’m being proper, a splash of pouring cream. Sometimes I eat it cold out of the fridge for breakfast—don’t judge.

Stuff I’ve Learned the Hard Way (AKA Pro Tips)

• I once tried rushing the topping by microwaving the butter to soften it—don’t do this. It turns into greasy mush.
• Give it that little rest after baking. If you cut in too soon, it’s a soupy mess (trust me, I have stains on my jumper to prove it).
• Oh, and don’t skip the pinch of salt—it actually does make a difference, who knew?

FAQ: Rhubarb Crisp Questions I’ve Actually Gotten

• Can I use frozen rhubarb? Absolutely! Just thaw it and pat it dry so you don’t end up with a watery crisp. Or, honestly, just use it frozen and bake a couple minutes longer. I’ve done both.
• Can I make this gluten-free? Sure thing. Swap the flour for a gluten-free mix (I like this blend). Just make sure your oats are gluten-free too!
• What if I hate oats? Weird, but I get it—just up the flour a bit and toss in some chopped nuts for crunch. Or skip the topping and just eat sweetened rhubarb, I guess?
• How sweet is this? Rhubarb is tart, so this isn’t cloying. But if you like things really sweet, add another spoonful of sugar, no judgment.
• Do I really need cornstarch? It helps, but if you don’t have it, flour will do the trick (or just accept the juice!).
• Where do you get your rhubarb? Usually pilfered form my neighbor’s overgrown patch, but farmers’ markets have the best stuff. (Pro tip: here’s when it’s in season.)

By the way, if you have leftovers (ha!), try topping your morning yogurt with it. Or don’t. But I do. Sometimes I even send a square along with my neighbor as a thank you—and that’s the circle of rhubarb life, right? If you want to get a little fancy, I found this homemade ice cream recipe that’s a dream with warm rhubarb crisp. Anyway, there you have it: rhubarb crisp that’s a little messy, a lot tasty, and not the least bit fussy.

★★★★★ 4.10 from 78 ratings

Rhubarb Crisp Recipe

yield: 6 servings

prep: 15 mins

cook: 40 mins

total: 55 mins

A classic rhubarb crisp recipe featuring tart rhubarb topped with a buttery oat crumble. Perfect for a comforting dessert served warm with ice cream.

🖨️ Print Pin Recipe

Ingredients

• 4 cups fresh rhubarb, chopped
• 3/4 cup granulated sugar
• 1 tablespoon cornstarch
• 1 teaspoon vanilla extract
• 1 cup old-fashioned rolled oats
• 3/4 cup all-purpose flour
• 1/2 cup packed brown sugar
• 1/2 cup unsalted butter, melted
• 1/2 teaspoon ground cinnamon
• Pinch of salt

Instructions

1. 1
   Preheat the oven to 350°F (175°C). Lightly grease an 8-inch square baking dish.
2. 2
   In a large bowl, combine the chopped rhubarb, granulated sugar, cornstarch, and vanilla extract. Toss until the rhubarb is evenly coated.
3. 3
   Spread the rhubarb mixture evenly in the prepared baking dish.
4. 4
   In a separate bowl, mix together the oats, flour, brown sugar, melted butter, cinnamon, and salt until crumbly.
5. 5
   Sprinkle the oat mixture evenly over the rhubarb layer.
6. 6
   Bake for 40 minutes or until the topping is golden brown and the rhubarb is bubbling. Let cool slightly before serving.

CLICK FOR NUTRITION INFO ↑

Approximate Information for One Serving

Serving Size: 1 serving

Calories: 320 caloriescal

Protein: 3 gg

Fat: 11 gg

Saturated Fat: 0g

Trans Fat: 0g

Cholesterol: 0mg

Sodium: 0mg

Potassium: 0mg

Total Carbs: 54 gg

Fiber: 0g

Sugar: 0g

Net Carbs: 0g

Vitamin A: 0

Vitamin C: 0mg

Calcium: 0mg

Iron: 0mg

Nutrition Disclaimers

Number of total servings shown is approximate. Actual number of servings will depend on your preferred portion sizes.

Nutritional values shown are general guidelines and reflect information for 1 serving using the ingredients listed, not including any optional ingredients. Actual macros may vary slightly depending on specific brands and types of ingredients used.

To determine the weight of one serving, prepare the recipe as instructed. Weigh the finished recipe, then divide the weight of the finished recipe (not including the weight of the container the food is in) by the desired number of servings. Result will be the weight of one serving.

Did you make this recipe?

Please consider Pinning it!!