INGREDIENTS
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3 cups all-purpose flour, plus more for surface
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1 tablespoon baking powder
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1 1/4 teaspoons coarse salt
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2/3 cup granulated sugar
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1 tablespoon plus 1 teaspoon finely grated lemon zest
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8 ounces (2 sticks) unsalted butter, room temperature
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3 large eggs
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1 teaspoon pure vanilla extract
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1 teaspoon fresh lemon juice
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3 cups confectioners' sugar
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7 to 8 tablespoons fresh lemon juice (from 4 lemons)
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1/4 cup plus 2 tablespoons white nonpareils, for sprinkling