Blueberry Crumble Bars
A buttery shortbread-like base, juicy blueberry filling & crumbly crumble topping - these Blueberry Crumble Bars are so easy & delicious!
Ingredients
· For the Blueberry Layer
· 2 cups fresh or frozen blueberries
· 2 teaspoons cornstarch
· 1 tablespoon lemon zest
· 1 tablespoon freshly squeezed lemon juice , don't use bottle lemon juice - it's too tart
· 1/4 cup granulated sugar
· For the Bottom Lay & Top Crumble
· 1 and 1/4 cup all-purpose flour , spooned & leveled
· 1/2 cup granulated sugar
· 1/2 teaspoon baking powder
· 10 tablespoons unsalted butter , cold (1/2 cup plus 2 tablespoons)
· 1 large egg yolk
· 1 tablespoon packed brown sugar
· 1 tablespoon granulated sugar
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