Old Fashioned Rhubarb Crumble

By Kate Shungu ● Updated May 6, 2025

With its tangy rhubarb filling and crisp, buttery topping, Old Fashioned Rhubarb Crumble is a classic dessert that never goes out of style.

rhubarb crumble in a small dish topped with a scoop of vanilla ice cream.
woman scooping pistachio salad into a parfait dish, with colorful vintage bowls in the background.
Kate’s Recipe Rundown

I look forward to rhubarb season every spring. There’s just something about tart rhubarb that begs to be made into dessert!

This Old Fashioned Rhubarb Crumble strikes the perfect balance between sweet and tart. It’s simple to make, it requires basic pantry/refrigerator staples, and it’s absolutely delightful served warm with a scoop of vanilla ice cream on top.

If you have more rhubarb to use, don’t miss these classic Rhubarb Custard Bars or this old fashioned Rhubarb Cake. They’re perfect for spring.

Enjoy! Kate
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Ingredients

rhubarb, egg, flour, sugar, and other ingredients.
  • You’ll need 3–4 large stalks of fresh rhubarb for this recipe. Late April/early May is when I start to see it at grocery stores in Chicago. If I’m the lucky recipient of home-grown rhubarb from friends, I’ll usually make some rhubarb sauce with any extra!
  • Be sure to use unsalted butter here. If it’s salted, omit the salt. The tartness of the rhubarb doesn’t pair well with too much salt.

How to Make Old Fashioned Rhubarb Crumble

  1. Toss the rhubarb with the flour, white sugar, egg, and baking powder.
  2. Transfer to a greased baking dish.
  3. Cut the butter into the brown sugar, flour, and salt until it’s crumbly. You can use a pastry blender, two forks, or your hands for this.
  4. Pour over the rhubarb mixture, and bake for 30–35 minutes, or until golden brown on top.
top of a dish full of rhubarb crumble.

📖 Recipe

rhubarb crumble in a small dish topped with a scoop of vanilla ice cream.

Old Fashioned Rhubarb Crumble

Published by Kate
This sweet and tart crumble is perfect for spring!
No ratings yet
Prep Time 10 minutes
Cook Time 30 minutes
Total Time 40 minutes
Course Dessert
Cuisine American
Servings 8 servings
Calories 409 kcal

Ingredients
  

For the rhubarb mixture:

  • 4 cups chopped rhubarb
  • 1 cup flour
  • 1 cup granulated sugar
  • 1 teaspoon baking powder
  • 1 egg beaten

For the topping:

  • ½ cup unsalted butter cold
  • 1 cup brown sugar
  • ½ cup flour
  • ½ teaspoon salt

Instructions
 

  • Preheat oven to 350°F. Grease an 8×8-inch baking dish.
  • In a large bowl, toss together the rhubarb, 1 cup flour, granulated sugar, baking powder, and beaten egg.
    4 cups chopped rhubarb, 1 cup flour, 1 cup granulated sugar, 1 teaspoon baking powder, 1 egg
  • Pour into the prepared baking dish.
  • Cut the butter into small cubes.
  • Place the brown sugar, ½ cup flour, salt, and cubed butter into the now-empty bowl. Use a fork, pastry blender, or your hands to cut the butter into the flour mixture until pea-sized lumps form.
    ½ cup unsalted butter, 1 cup brown sugar, ½ cup flour, ½ teaspoon salt
  • Pour the mixture over the rhubarb mixture in the pan.
  • Bake for 30–35 minutes, or until golden brown on top.
  • Serve warm with ice cream or whipped cream on top.

Notes

Want to jazz up this recipe? Add one of the following:
  • ½ teaspoon cinnamon
  • ⅛ teaspoon ground nutmeg
  • zest of one lemon
  • zest of one orange
Store any leftover crumble in the refrigerator for up to 5 days. I don’t recommend freezing it, as the freeze/thaw process will leave you with very watery rhubarb at the bottom of the crumble.

Nutrition

Calories: 409kcalCarbohydrates: 73gProtein: 4gFat: 12gSaturated Fat: 8gPolyunsaturated Fat: 1gMonounsaturated Fat: 3gTrans Fat: 0.5gCholesterol: 51mgSodium: 219mgPotassium: 249mgFiber: 2gSugar: 52gVitamin A: 446IUVitamin C: 5mgCalcium: 115mgIron: 2mg
Keyword old fashioned rhubarb crumble, rhubarb crumble
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More Rhubarb Recipes for spring

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