Preheat oven to 375 degrees
Mix half the butter cake mix,eggs,butter and vanilla.Mix well.Add remaining cake mix.Stir in nuts.Mix well.
Chocolate Cookie: Mix half the chocolate cake mix,eggs,butter and vanilla.Mix well.Add remaining cake mix.Stir in nuts.Mix well.
Scoop 1 teaspoon of vanilla dough into ball. Scoop 1 teaspoon of chocolate dough into ball. Gently press dough balls together, then roll gently to form one ball. Place 20 balls on an ungreased baking sheet, spaced evenly apart. Bake for 10 minutes, or just until cookies begin to brown. Cool cookies on cookie sheets for 5 minutes. Transfer cookies to cooling racks and cool completely. Repeat with remaining chocolate and vanilla dough, forming about 6 dozen cookies total