1 pound butter, softened
1/2 cup mayonnaise
2 tablespoons vegetable oil
2 eggs, driven by a tablespoon
1 1/2 teaspoons vanilla extract
1 1/2 teaspoons lemon juice
1 cup all-purpose flour
1/8 teaspoon salt
1 teaspoon baking powder
1 cup chopped walnuts
1 cup flaked chocolate candy