Espresso Shortbread Cookies

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   ["Preheat oven to 325.", "In a large bowl, use a mixer to beat together butter and sugar until light and fluffy.", "Add vanilla, salt, espresso grounds and Kahlua.", "Beat to combine.", "Add flour and mix until well blended.", "Form dough into two 1-1/2 inch thick logs, cover with plastic wrap or wax paper and chill at least 2 hours or overnight.", "Cut chilled dough into 1/4"" thick slices and lay slightly apart on ungreased cookie sheets.", "Bake until cookies are browned on the bottom but not on the top, 15 - 20 minutes.", "Transfer to a rack to cool."]

* Per serving · 4 servings · Values may vary.

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