Prep Time:
6 mins
Total Time:
6 mins
Yield:
Makes 1 1/4 cups, enough to fill about 60 sandwich cookies of various sizes
If making both Pink Heart Sandwich Cookies and the Chocolate Heart Sandwich Cookies, just double this recipe.
Directions
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Beat butter with a mixer on medium-high speed until light and fluffy, about 3 minutes. Reduce speed to low, and gradually add sugars, beating until thoroughly combined. Beat in vanilla. If filling is too thick to spread, beat in milk, 1 tablespoon at a time, until spreadable.
