"PERFECT Fireworks Sugar Cookie Bars! Easy cookie bars have homemade frosting and lots of red, white and blue sprinkles for the 4th of July...."
INGREDIENTS
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4 ¼ cup (558g) all-purpose flour
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1 teaspoon baking powder
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¼ teaspoon salt
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1 cup (226g) unsalted butter (, softened)
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1 ⅔ cup (334g) granulated sugar
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3 large eggs
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1 teaspoon vanilla extract
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½ cup patriotic sprinkles
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½ cup (113g) unsalted butter (, softened)
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2 ½ cups (283g) powdered sugar
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Pinch salt
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1 teaspoon vanilla extract
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1 ½ tablespoons whole milk
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Patriotic sprinkles for garnish