Strawberry Rhubarb Crumb Bars


It’s not too often throughout the year that my local grocery store has fresh rhubarb, but when it does I always have to grab some. I absolutely love the strawberry rhubarb combination and how the sweetness of the strawberries and the tartness of the rhubarb balances each other out so perfectly. And when you pair that combination with a buttery, sweet, vanilla, oat crumble you know it’s going to be good – and let me tell you these are unbelievably delectable! It’s one of those sweets that you’ll keep finding yourself heading back to the kitchen and cutting off little square after little square until half the pan is gone because there’s just no resisting them! They are one of my all time favorite bars and that is saying something! They have the most amazing texture with a crisp toping and very bottom layer then that middle layer next to the fruity filling is kind of chewy and soft like a cookie. I will never stop dreaming about these things, and I love that they are easy to make (and no mixer is required)!

Strawberry Rhubarb Crumb Bars | Cooking Classy

If you like these you’ll also have to try my Lemon Creme Crumb Bars and my Pumpkin Pie Crumb Bars (who says you need to wait until fall to bake with pumpkin? Definitely not me. I often take pumpkin chocolate chip cookies to the beach in the summer. So random I know, but so right). For now start with these because you’ll have a better chance of getting fresh rhubarb, then next week try the lemon version then the week after that the pumpkin. That sounds like a well planned out, wonderful three weeks to me :).

Strawberry Rhubarb Crumb Bars | Cooking Classy Strawberry Rhubarb Crumb Bars | Cooking Classy Strawberry Rhubarb Crumb Bars | Cooking ClassyStrawberry Rhubarb Crumb Bars | Cooking Classy Strawberry Rhubarb Crumb Bars | Cooking Classy


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Strawberry Rhubarb Crumb Bars

5 from 1 vote

My favorite way to use rhubarb! These bars include layers of buttery oat crumble, and a sweet, slightly tart, juicy strawberry rhubarb filling. A must try recipe!

Servings: 12
Prep Time 20 minutes
Cook Time 45 minutes
Total Time 1 hour 5 minutes


Crumb layers

  • 1 1/3 cups (188g) all-purpose flour
  • 1/2 tsp baking soda
  • 1/4 tsp salt
  • 1 1/3 cups (120g) rolled old fashioned oats
  • 1/2 cup (110g) packed light brown sugar
  • 1/2 cup (110g) granulated sugar
  • 3/4 cup (170g) unsalted butter, melted
  • 2 tsp vanilla extract


  • 1 3/4 cups (273g) hulled and diced strawberries (from 12 oz whole)
  • 1 1/2 cups (190g) diced rhubarb, sliced 1/4-inch thick
  • 1 Tbsp fresh lemon juice
  • 1/3 cup (71g) granulated sugar
  • 1 Tbsp (9g) cornstarch


  1. For the crumb layer: Preheat oven to 350 degrees. Butter a 9 by 9-inch baking dish and line with parchment paper, butter parchment*.
  2. In a mixing bowl whisk together flour, baking soda and salt. Add in oats, brown sugar and granulated sugar and whisk to blend, while using fingertips to break up small clumps of brown sugar.

  3. Whisk vanilla into melted butter then pour melted butter over oat mixture. Stir with a spatula until mixture is evenly moistened. 

  4. Press 2/3 of the mixture into prepared baking dish, set aside remaining 1/3.
  5. For the filling: Add diced strawberries and rhubarb to a medium mixing bowl. Toss with lemon juice. 
  6. In a small mixing bowl whisk together sugar and cornstarch. Pour sugar mixture over strawberry mixture and toss to coat. 

  7. Pour strawberry mixture over bottom crumb layer in baking dish. Evenly sprinkle remaining 1/3 crumb mixture over top. 
  8. Bake in preheated oven until top is golden brown and crisp and filling is bubbling, about 45 - 50 minutes. 
  9. Cool on a wire rack until warm then cut into squares. Serve warm with vanilla ice cream if desired.

Recipe Notes

  • *If you don't care to lift the bars out of the pan before cutting you can just butter the dish, no parchment needed.
Nutrition Facts
Strawberry Rhubarb Crumb Bars
Amount Per Serving
Calories 305 Calories from Fat 108
% Daily Value*
Total Fat 12g 18%
Saturated Fat 7g 35%
Cholesterol 30mg 10%
Sodium 107mg 4%
Potassium 148mg 4%
Total Carbohydrates 46g 15%
Dietary Fiber 2g 8%
Sugars 25g
Protein 2g 4%
Vitamin A 7.4%
Vitamin C 18.3%
Calcium 3.6%
Iron 7.5%
* Percent Daily Values are based on a 2000 calorie diet.
Course: Dessert
Cuisine: American
Keyword: Dessert, Strawberry Crumb Bars
Calories: 305 kcal
Author: Jaclyn


  • Sam: Can you use frozen rhubarb and frozen strawberries? July 10, 2018 at 1:48pm Reply

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