Killarney Cake

1 (18.25 ounce) box chocolate fudge cake mix
1/4 cup cr?me de menthe or 1 teaspoon peppermint extract
1/2 cup chopped green maraschino cherries
1 1/2 cups heavy cream
3 tablespoons cr?me de menthe or 1/2 teaspoon peppermint
    extract and 2 tablespoons confectioners' sugar
1/4 cup whole green maraschino cherries
Chocolate curls

Prepare cake mix following package directions, substituting 1/4 cup cr?me de menthe for 1/4 cup water. Stir in chopped cherries. Pour into 2 greased 9-inch layer cake pans; bake as directed. Cool.

Whip cream with tablespoons cr?me de menthe. Spread 1/3 of whipped cream between cake layers. Heap remaining whipped cream on top. Arrange whole cherries and chocolate curls over whipped cream.