In a large bowl, combine flour, sugar, and salt. Add flour mixture and butter to a food processor or blender and pulse until all ingredients are combined. Add in vanilla extract and 1 drop of peppermint extract and pulse until mixture is
crumbly. Be sure not to overmix.
Transfer cookie dough onto a floured surface. Knead and roll dough into a log. Cover with plastic wrap and refrigerate for approximately one hour.
After about an hour, preheat oven to 325 F and line a cookie sheet with parchment paper. Slice cookies and arrange on cookie sheet.
Melt white chocolate morsels and milk chocolate morsels in the microwave, separately, for about 2 minutes. Make sure to stir about every 30 seconds. Dip the cookies into the melted chocolate, and sprinkle with additional chopped almonds and crushed peppermint, if desired.