01 -
Beat softened butter in a mixing bowl with an electric mixer until smooth, about 30–45 seconds.
02 -
Mix in powdered sugar, sweetened condensed milk, peppermint or other desired extract, and vanilla. Continue mixing until a dough forms. If too sticky, knead in up to 1/4 cup additional powdered sugar.
03 -
Divide dough into 3 or 4 portions. Add a few drops of food coloring to each, kneading until color is incorporated. Dough will naturally be swirl-patterned.
04 -
Pinch off a 2-inch ball of colored dough. Roll into a long rope on a cutting board. Cut rope into bite-sized pieces using a pizza cutter.
05 -
Transfer mints onto a baking sheet. Allow to air dry at room temperature for 24 hours. Store finished mints in the refrigerator for several weeks or freeze for up to 2 months.