It isn't a super sweet cake...I'm guessing the candy is supposed to make up for that but pb cups really didn't. Shar added a glaze to hers and that is a great idea! I used vanilla yogurt instead of plain because the organic was on sale and I couldn't find "ww pastry flour" so I used whole wheat regular flour.
Halloween leftovers cake
2 cups coarsely chopped chocolate or candy
1 cup flour
1 3/4 cups whole-wheat pastry flour
1 teaspoon baking soda
1/2 cup butter
1 cup sugar
1 1/2 teaspoons vanilla
1 cup plain yogurt
Preheat oven to 350F. Grease a tube pan (10-12 cup capacity) and dust with flour. Sift together flours and baking soda; set aside. In large bowl, cream butter and sugar until soft. Add vanilla and eggs, one at a time, mixing well after each one. On low speed, alternate adding dry ingredients with yogurt, scraping bowl as necessary. Add candy and fold in gently. Bake 1 hour or until tests done. Cool 15 minutes. Cover pan with rack and invert.