It is a Black & Decker Toast-R-Oven.

How would I adjust the temperature & time, baking blueberry muffins in a JUMBO muffin pan? Can I just use my regular recipe or will I have to adjust ingredients as well? For "regular" (medium) muffin tin, the instructions are 20-25 minutes at 400 (F).

Thanks!
Thank Rli – if I just go with your temp of 350, how long should I bake? I haven’t used this recipe in a long time and don’t recall if I had problems with 400 or not…