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Peach Bars

A close-up of stacked Peach Bars with a golden crumble topping and gooey peach filling, dusted lightly with powdered sugar.

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Peach Bars are a chewy, fruity summer dessert made with a buttery oat crust, thick peach cobbler filling, and a sweet cinnamon glaze.

Ingredients

Scale
  • 2 large ripe peaches, diced (about 1¼ cups)
  • 3 tbsp light brown sugar (for filling)
  • 1/4 tsp cinnamon (filling)
  • Pinch of nutmeg
  • 1/2 tsp lemon juice
  • 1½ tsp cornstarch + 1½ tsp water
  • 1/2 tsp vanilla extract (filling)
  • 3/4 cup salted butter, melted
  • 1½ cups all-purpose flour
  • 1 cup whole rolled oats
  • 3/4 cup light brown sugar (crust)
  • 3/4 tsp baking soda
  • 1/4 tsp salt
  • 1/2 tsp cinnamon (crust)
  • 1/2 cup powdered sugar (glaze)
  • 1 tbsp milk or water
  • 1/2 tsp vanilla extract (glaze)
  • Pinch of cinnamon (glaze)

Instructions

  1. Preheat oven to 350°F and line a 9×9-inch metal pan with parchment paper.
  2. Prepare peach filling: In a saucepan, combine diced peaches, brown sugar, cinnamon, nutmeg, lemon juice. Simmer for 5–6 minutes.
  3. Mix cornstarch with water, stir into peach mixture and cook for 1 more minute until thick. Remove from heat and add vanilla. Chill completely in fridge.
  4. Make the crust/topping: In a bowl, mix melted butter, oats, flour, brown sugar, baking soda, salt, and cinnamon. Reserve 1 cup of mixture.
  5. Press remaining crust mixture into prepared pan. Bake for 10 minutes.
  6. Spread chilled peach filling over the baked crust.
  7. Top with flattened clumps of reserved oat mixture.
  8. Bake for 28–33 minutes until golden brown and center is set.
  9. Cool completely, then refrigerate at least 2 hours before glazing and slicing.
  10. Whisk powdered sugar, vanilla, cinnamon, and milk to make glaze. Drizzle over bars before serving.

Notes

  • Use fresh, ripe peaches for best flavor; frozen or canned can be used with adjustments.
  • Chill filling fully before layering on crust to prevent sogginess.
  • Metal pans provide more even baking than glass.
  • Refrigerate leftovers for up to 3 days; bars can also be frozen.
  • Let bars chill before slicing for clean edges.

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