INGREDIENTS
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2 3/4 cups all-purpose flour, plus more if needed for flouring
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1/2 cup old-fashioned oats, ground in a food processor
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1/3 cup granulated sugar
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2 tablespoons baking powder
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1/4 teaspoon salt
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2 sticks (1 cup) cold unsalted butter, cut into cubes
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1/2 cup pecans, finely chopped, plus more for sprinkling
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3/4 cup heavy cream, plus more if needed
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1 teaspoon maple extract
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1 large egg
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5 cups powdered sugar
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1/4 cup whole milk
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2 tablespoons unsalted butter, melted
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2 tablespoons strong brewed coffee
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2 teaspoons maple extract