Peppermint Fudge Sour Cream Cake

1 pkg. Betty Crocker sour cream chocolate fudge frosting mix
1 1/2 cups whipping cream
1 pkg. Betty Crocker sour cream chocolate fudge cake mix
1/4 tsp. peppermint extract
1/2 cup crushed peppermint candy (about 5 sticks)

In small mixer bowl, shill frosting mix (dry) and whipping cream at least 1 hour.
Bake cake in 2 layer pans, 8x1/2", as directed on package.
Add peppermint extract to frosting mixture; beat until stiff.
Fill layers and frost cake.
Sprinkle peppermint over top.
Because of the whipping cream, refrigerate any leftover cake.