Peppermint Sandwich Cookie Filling

Test Kitchen-Approved

Author Notes: Minty and sweet, this is my favorite filling for homemade Oreo cookies.Posie (Harwood) Brien

Makes: enough for 18 sandwich cookies
Prep time: 10 min


  • 1/2 cup unsalted butter, softened
  • 1 1/2 cups confectioners' sugar
  • 1/4 teaspoon peppermint extract
  • pinch sea salt
  • 4 drops red food coloring (optional)
In This Recipe


  1. Beat the butter in the bowl of a stand mixer, about 3 minutes. Add the remaining ingredients and beat until very fluffy, about 5 minutes more.

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