Deda, I have become affectionately attached to CPOP and I see that on the Kelsei site, they don't guarantee the molds if used in the oven. I never go above 170 degrees for an hour and then turn the oven off. I guess I will keep looking. I think the one for me will be to make a wood support boxto go around silicone brownie pan, then make some plastic dividers or something. I think most brownie pans are 8x8, so I could probably squeeze 3 bars across and two bars the other way. I can trim them if needed. I'm investigating an easy way to not have to pay $50.00!