"The short crust base has a pleasant grittiness thanks to the addition of cornmeal, which loves to be partnered with lime. Serve these in a single layer, even right out of the pan, to preserve the shiny tops...."
INGREDIENTS
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1 cup (2 sticks) unsalted butter, room temperature, plus more for pan
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1/2 cup fine cornmeal
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1/2 cup powdered sugar
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1/4 teaspoon kosher salt
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2 cups plus 3 tablespoons all-purpose flour, divided
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1 1/2 cups granulated sugar
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1 tablespoon finely grated lime zest
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4 large eggs plus 1 egg yolk
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3/4 cup fresh lime juice
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1 cup fresh blueberries
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2 tablespoons granulated sugar