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Strawberry Oatmeal Crumble Bars Recipe

5 Stars 4 Stars 3 Stars 2 Stars 1 Star 3.9 from 83 reviews
  • Author: Emma
  • Prep Time: 15 minutes
  • Cook Time: 50 minutes
  • Total Time: 2 hours 5 minutes
  • Yield: 9 servings 1x
  • Category: Dessert
  • Method: Baking
  • Cuisine: American
  • Diet: Vegetarian

Description

These Strawberry Oatmeal Crumble Bars feature a buttery oat crust topped with a fresh strawberry filling and a crunchy crumble topping, perfect for a sweet, fruity dessert or snack.


Ingredients

Units Scale

For the Crust and Crumble Topping

  • 1/2 cup unsalted butter (melted)
  • 1 cup all-purpose flour
  • 3/4 cup old-fashioned oats
  • 1/2 cup granulated sugar
  • 1/4 cup light brown sugar (packed)
  • 1/2 teaspoon salt (or to taste)

For the Strawberry Layer

  • 2 cups coarsely chopped fresh strawberries
  • 1/3 cup granulated sugar
  • 2 tablespoons lemon juice
  • 2 teaspoons cornstarch

Instructions

  1. Crust and Crumble Topping: Preheat oven to 350F. Line an 8-inch square pan with aluminum foil and spray with cooking spray; set aside. Lining the pan helps with cleanup and is recommended.
  2. Melt the Butter: In a large, microwave-safe bowl melt the butter, about 1 minute on high power.
  3. Combine Dry Ingredients: Add the flour, oats, sugars, optional salt, and stir to combine. Mixture will be dry and sandy with some larger, well-formed crumble pieces.
  4. Reserve Topping: Set 1 heaping cup mixture aside to be sprinkled on later as crumble topping.
  5. Form Crust: Transfer remaining mixture to prepared pan, and using a spatula or your fingers, hard-pack the mixture to create an even, smooth, flat crust; set aside.
  6. Strawberry Layer:
  7. Prepare Strawberry Mixture: In a large mixing bowl (same one used for crust and crumble is okay), add all ingredients and toss to combine. If sugar hasn’t dissolved fully that’s okay because it liquifies while baking.
  8. Distribute Strawberries: Evenly distribute strawberry mixture over the crust.
  9. Add Topping: Evenly sprinkle with the reserved heaping 1 cup crumble topping mixture. Before sprinkling, I squeeze the mixture in my palm to encourage bigger crumble pieces to form.
  10. Bake: Bake for about 50 minutes, or until edges are set and center has just set. Crumble topping should appear set and very pale golden and the strawberry filling mixture will be bubbling along the edges. Bars may take longer than 50 to 55 minutes if the strawberries are very juicy. Watch your bars, not the clock, when evaluating doneness.
  11. Cool: Place pan on a wire rack and allow bars to cool for at least 1 hour before slicing and serving. If you try to slice bars before they’ve cooled completely, they’ll be extremely messy and could fall apart.

Notes

  • Lining the pan with aluminum foil helps with cleanup and is recommended.
  • It is okay if the sugar hasn’t dissolved fully in the strawberry mixture because it liquifies while baking.
  • Squeezing the crumble mixture in your palm before sprinkling encourages bigger crumble pieces.
  • Bars must cool at least 1 hour before slicing to avoid messiness and falling apart.
  • Watch your bars, not the clock, for doneness especially if strawberries are very juicy.