Back in the day....long before Nordstrom or Macy's carrying Frango mints, there was an entity called Frederick and Nelson. After High School I worked at the Tacoma Mall F & N in Accessories, Jewelry and Hosiery.
Freddies, or Frederick's, to us hip West Coast folk, had the best chocolates EVER. Frango Mints. Here is my latest addition to the Gluten Free/No Flour recipe archive. It is the closest homemade Frango-y thing I've tried.
2 sticks butter
2 cups sifted powdered sugar
1 tsp. vanilla
¾ tsp. peppermint extract
4 squares melted baking chocolate
Cream butter and sugar. Add eggs one at a time. Add chocolate and flavoring. Drop with serving spoon into muffin tin lined with paper cupcake cases. Freeze. Makes about 24.