Spirit Balls

2 cups crushed vanilla wafers
1 cup sifted confectioners' sugar
1 cup finely chopped walnuts
1/4 cup sifted cocoa
3 tablespoons dark corn syrup
6 tablespoons bourbon
1 pinch salt

Mix all ingredients together. Form into one inch balls. Roll balls in a mix of cocoa power and confectioner's sugar. Store covered several days before serving. Cookie can be stored for several weeks in a covered container.