"The best thumbprint cookies! In this thumbprint cookie recipe a 5-ingredient, buttery shortbread cookie is filled with your favorite jam for a delicious treat perfect for the holidays...."
INGREDIENTS
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1 cup salted butter
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⅔ cup granulated sugar
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1 teaspoon vanilla extract
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2 cups all-purpose flour (sifted)
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¼ teaspoon fine sea salt
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¾ cup jam (any flavor (we prefer seedless raspberry jam))