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Rhubarb Oat Bars Recipe

Rhubarb Oat Bars Recipe


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4.9 from 17 reviews

  • Total Time: 52 minutes
  • Yield: 9 1x

Description

Rhubarb Oat Bars deliver a perfect balance of tangy fruit and sweet crumble that brings your summer dessert game to the next level. Fresh rhubarb nestled between buttery oat layers creates a simple yet satisfying treat your family will absolutely adore.


Ingredients

Scale

Crust and Topping:

  • 1 cup all-purpose flour
  • 1 cup rolled oats
  • ¾ cup brown sugar
  • ½ cup butter
  • ½ teaspoon baking soda
  • ¼ teaspoon salt

Filling:

  • 2 cups rhubarb
  • ½ cup sugar
  • ¼ cup water
  • 1 tablespoon cornstarch
  • ½ teaspoon vanilla extract

Instructions

  1. Prepare your oven by heating it precisely to 350°F and coat an 8×8 inch baking pan with butter or parchment paper.
  2. Combine 1 cup flour, 1 cup rolled oats, ¾ cup brown sugar, ½ teaspoon baking soda, and ¼ teaspoon salt in a medium mixing bowl.
  3. Pour ½ cup melted butter into the dry ingredients and mix until the mixture forms coarse crumbs that hold together when pressed.
  4. Transfer ⅔ of the crumb mixture into the prepared pan, pressing firmly to create an even bottom crust.
  5. In a small saucepan, mix 2 cups chopped rhubarb, ½ cup sugar, 1 tablespoon cornstarch, ½ teaspoon vanilla extract, and ¼ cup water.
  6. Cook the rhubarb mixture over medium heat, stirring constantly for 5-7 minutes until it thickens and becomes glossy.
  7. Allow the rhubarb filling to cool for 5 minutes, then spread it evenly across the crust.
  8. Sprinkle the remaining crumb mixture over the rhubarb layer, creating a rustic, uneven topping.
  9. Bake in the preheated oven for 35 minutes until the edges turn golden brown and the filling bubbles slightly.
  10. Remove from the oven and let the bars cool completely at room temperature for approximately 2 hours.
  11. Slice into 9 even squares and store in the refrigerator for a crisp, clean cut.

Notes

  • Check rhubarb for freshness by selecting firm, bright red stalks without blemishes or soft spots.
  • Press the crust mixture firmly and evenly to create a solid base that holds together when sliced.
  • For a gluten-free version, swap regular flour with a cup-for-cup gluten-free blend and ensure your oats are certified gluten-free.
  • Cool the bars completely before cutting to help them set and prevent crumbling, giving you clean, neat slices.
  • Prep Time: 10 minutes
  • Cook Time: 42 minutes
  • Category: Dessert Bars
  • Method: Baking
  • Cuisine: American

Nutrition

  • Serving Size: 9
  • Calories: 180 kcal
  • Sugar: 15 g
  • Sodium: 95 mg
  • Fat: 7 g
  • Saturated Fat: 4 g
  • Unsaturated Fat: 3 g
  • Trans Fat: 0 g
  • Carbohydrates: 28 g
  • Fiber: 2 g
  • Protein: 2 g
  • Cholesterol: 20 mg