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A view of three peach crumb bars in a stack on a plate.
5 from 2 votes

Gluten-Free Peach Crumb Bars

These gluten-free peach crumb bars have a buttery shortbread crust pressed into the pan, a juicy peach filling spiced with cinnamon and nutmeg, and a golden crumb topping made from the same dough. Fresh or frozen peaches work, and the whole thing comes together in one bowl.
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Prep Time 10 minutes
Cook Time 50 minutes
Total Time 1 hour
Servings 12 bars

Ingredients

For the Crust:

  • 2 cups gluten-free flour blend - I used Bob's Red Mill 1-to-1 Gluten-Free Baking Flour (in the blue bag), which contains xanthan gum
  • ¾ cup granulated sugar
  • 1 teaspoon baking powder
  • 1 teaspoon cinnamon
  • 1 teaspoon salt
  • ¾ cup unsalted butter - melted and slightly cooled
  • 1 teaspoon pure vanilla extract

For the Filling:

  • 3 cups peaches - peeled and diced (from about 4 medium peaches)
  • ¼ cup granulated sugar
  • 2 tablespoons fresh lemon juice
  • 2 tablespoons cornstarch
  • 1 teaspoon cinnamon
  • ½ teaspoon nutmeg
  • ½ teaspoon salt

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Instructions

  • Preheat the oven to 350°F. Line a 9x9-inch baking dish with parchment paper and set aside.
  • In a large bowl, whisk together 2 cups gluten-free flour blend, ¾ cup granulated sugar, 1 teaspoon baking powder, 1 teaspoon cinnamon, and 1 teaspoon salt.
  • Stir in ¾ cup unsalted butter and 1 teaspoon pure vanilla extract until the dough comes together. It will look crumbly.
  • Reserve 1 scant cup of the dough and set aside for the topping. Press the remaining dough firmly and evenly into the bottom of the prepared baking dish.
  • In a separate bowl, toss 3 cups peaches that have been peeled and diced with ¼ cup granulated sugar, 2 tablespoons fresh lemon juice, 2 tablespoons cornstarch, 1 teaspoon cinnamon, ½ teaspoon nutmeg, and ½ teaspoon salt until the peaches are evenly coated.
  • Pour the peach filling over the crust and spread into an even layer.
  • Crumble the reserved dough evenly over the peach filling.
  • Bake at 350℉ for 45-50 minutes, until the topping is golden brown and the peach filling is bubbling around the edges.
  • Let cool completely before slicing. For the cleanest cuts, refrigerate for 30 minutes before slicing.

Notes

  • Gluten-Free Flour: I tested this recipe with Bob's Red Mill 1-to-1 Gluten-Free Baking Flour (blue bag). I cannot verify other flour blends will produce the same results as I have not tested them.
  • Dairy-Free/Vegan: Substitute melted vegan butter such as Earth Balance vegan buttery sticks for the unsalted butter.

Nutrition

Calories: 241kcal | Carbohydrates: 37g | Protein: 2g | Fat: 9g | Saturated Fat: 2g | Sodium: 382mg | Potassium: 110mg | Fiber: 2g | Sugar: 20g | Vitamin A: 665IU | Vitamin C: 3.5mg | Calcium: 33mg | Iron: 0.8mg
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