"They're everything you loved about the blue tin, but better...."
INGREDIENTS
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2 sticks (16 tablespoons) cold unsalted butter
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1/2 cup granulated sugar
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2 large eggs, divided
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1 teaspoon vanilla extract
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2 cups all-purpose flour, plus more for rolling
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1/4 teaspoon kosher salt
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1 teaspoon water
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1/4 cup sanding, sparkling, or coarse sugar