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Cozy Nectarine Crumble Bars with Brown Butter Oat Streusel

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These cozy nectarine crumble bars feature a buttery brown butter oat streusel topping and a juicy nectarine filling, perfect for a quick and comforting homemade dessert.

Ingredients

Scale
  • 1 cup (120g) all-purpose flour
  • 1 cup (90g) old-fashioned rolled oats
  • ½ cup (100g) granulated sugar
  • ½ cup (110g) unsalted butter, browned and cooled slightly
  • ¼ tsp salt
  • ½ tsp ground cinnamon (optional)
  • 4–5 medium ripe nectarines, peeled and sliced (about 3 cups or 450g)
  • 2 tbsp granulated sugar
  • 1 tbsp cornstarch
  • 1 tsp lemon juice
  • ½ tsp vanilla extract (optional)

Instructions

  1. Preheat your oven to 350°F (175°C) and grease a 9×9-inch baking pan or line it with parchment paper.
  2. In a medium saucepan, melt the ½ cup unsalted butter over medium heat. Stir frequently until the butter foams and turns golden brown with a nutty aroma (about 5 minutes). Remove from heat and let cool slightly.
  3. In a large bowl, combine 1 cup all-purpose flour, 1 cup rolled oats, ½ cup granulated sugar, ¼ tsp salt, and ½ tsp cinnamon if using. Pour in the browned butter and stir until the mixture is crumbly and holds together when pressed.
  4. In another bowl, toss the sliced nectarines with 2 tbsp sugar, 1 tbsp cornstarch, 1 tsp lemon juice, and ½ tsp vanilla extract.
  5. Press about two-thirds of the oat mixture evenly into the bottom of the prepared pan. Spread the nectarine filling evenly over the crust layer. Sprinkle the remaining oat crumble on top, breaking it into chunks for a rustic look.
  6. Bake for 35-40 minutes, or until the top is golden brown and the filling is bubbling around the edges. Tent with foil after 25 minutes if browning too quickly.
  7. Remove from oven and cool completely on a wire rack for at least 1 hour to allow the filling to set.
  8. Cut into bars or squares and serve slightly warm or at room temperature.

Notes

Watch the butter closely when browning to avoid burning; remove from heat as soon as it smells nutty and turns golden amber. Cooling the bars completely before cutting helps the filling set and prevents a juicy mess. Peeling nectarines is optional but recommended for smoother texture. Bars keep well refrigerated for up to 4 days and freeze well for up to 2 months.

Nutrition

Keywords: nectarine crumble bars, brown butter, oat streusel, homemade dessert, easy baking, seasonal fruit dessert

Find it online: https://crispcraving.com/cozy-nectarine-crumble-bars-recipe-easy-homemade-brown-butter-oat-streusel/