Caramel Walnut Cake
["1/2 box yellow cake mix", "1 c. chopped walnuts", "1/3 c. butter or margarine", "1/2 c. brown sugar", "1 tsp. light corn syrup"]
["Melt butter or oleo.", "Bring to boil with brown sugar and light corn syrup.", "Pour into ungreased 9-inch square cake pan.", "Arrange chopped walnuts over mixture.", "Top with cake batter made as directed on package.", "Bake 35 minutes at 350\u00b0.", "Invert immediately, leaving pan over cake 1 minute.", "Especially good served warm.", "Top with whipped cream, cherry if desired."]
["yellow cake mix", "walnuts", "butter", "brown sugar", "light corn syrup"]