Peanut butter brownies Party Pieces While sorting out recipes cut from magazines recently, I came across one for marbled peanut butter brownies. Having been off chocolate in January, I decided that I would reward my abstemiousness with a chocolate treat. My self-imposed rule when I haven't given up chocolate in January is not to eat chocolate except on Fridays and Saturdays ... and perhaps a sneaky bit on Sundays. Back to the brownies recipe. When would I get to try it out? The occasion arose. Two colleagues were moving on and in the time-honoured tradition of showing affection for people who are always on diets or lamenting their weight, a group of us marked their departure by going out for lunch and then having a tea party about an hour and a half later! I baked, of course. First I made good old-fashioned cup cakes using the batter and glace icing recipes from Mary Norwak's Breads, Cakes and Biscuits , which was published in 1978. Then I made the marbled peanut but