Crumb-Topped Rhubarb Crunch

Total Time

Prep: 20 min. Bake: 1 hour


8 servings

Updated: Nov. 28, 2023
For this treat, Minocqua, Wisconsin field editor Charlene Griffin features that perennial spring flavor, rhubarb.


  • 1 cup all-purpose flour
  • 1 cup old-fashioned oats
  • 1 cup packed brown sugar
  • 1 teaspoon ground cinnamon
  • 1/2 cup cold butter, cubed
  • 4 cups diced fresh rhubarb or frozen rhubarb
  • 1-1/3 cups sugar
  • 2 teaspoons cornstarch
  • 1 cup cold water
  • 1 teaspoon vanilla extract
  • Vanilla ice cream, optional


  1. In a large bowl, combine the first four ingredients. Cut in butter until mixture resembles coarse crumbs. Press half of the mixture into a greased 8-in. square baking dish. Set remaining crumb mixture aside for topping. Sprinkle rhubarb over crust; set aside.
  2. In a small saucepan, combine the sugar and cornstarch; gradually whisk in water until smooth. Bring to a boil; cook and stir for 2 minutes or until thickened.
  3. Remove from the heat; whisk in vanilla. Pour over rhubarb. Sprinkle with reserved crumb mixture.
  4. Bake, uncovered, at 350° for 1 hour or until bubbly and lightly browned. Serve warm with ice cream if desired.
If using frozen rhubarb, measure rhubarb while still frozen, then thaw completely. Drain in a colander, but do not press liquid out.

Nutrition Facts

1 slice: 444 calories, 12g fat (7g saturated fat), 31mg cholesterol, 130mg sodium, 82g carbohydrate (61g sugars, 3g fiber), 4g protein.