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| unsalted butter: 2/3 cup |
| whole milk: 2 Tbl |
| vanilla extract: 1 tsp |
| red food coloring: 1/4 tsp |
| powdered sugar (sifted): 4 cups |
Credit: allrecipes.com
In a medium bowl, cream together the butter, confectioners' sugar, and milk until light and fluffy, about 3 to 4 minutes. Beat in the vanilla and food coloring. Spread on or between cookies.