"Classic snickerdoodle cookies with a sweet Biscoff cinnamon filling. These sandwich cookies are fun to make and eat. Make a batch for your holiday cookie swap...."
INGREDIENTS
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For the cookies: 2 3/4 cups all-purpose flour 2 teaspoons baking powder 1/2 teaspoon salt 1 1/2 cups granulated sugar 1 cup butter, at room temperature 2 large eggs 2 tablespoons sugar 2 teaspoons cinnamon For the Biscoff Cinnamon Filling: 3 tablespo