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Line a baking sheet with parchment paper. Set aside.
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In a small bowl, whisk together the flour, cinnamon, ginger, cloves, nutmeg, allspice, baking soda, cream of tartar, and salt. Set aside.
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In a medium bowl, beat the butter, ½ cup of the granulated sugar, and the brown sugar until light and creamy, 1-2 minutes.
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Add the egg yolk and vanilla and beat on low speed until combined.
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Add the pumpkin purée and beat on low speed, scraping the sides of the bowl as needed.
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Add the flour mixture and beat until combined.
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Using a ¼ cup measure, scoop the dough into 8 balls. Place the balls on the prepared baking sheet and chill for 1 hour.
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Preheat the oven to 325°F. Line two baking sheets with parchment paper.
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Pour remaining 1/2 cup granulated sugar into a medium bowl.
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Roll chilled the cookie dough balls into granulated sugar and place on prepared baking sheets, 2-3 inches apart.
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Bake the cookies for 17-20 minutes until edges are browned and centers begin to set. Cool for 5 minutes before transferring to a wire rack to cool completely.