The only fudge my family eats around the holidays. For the marshmallow creme, we always get one large jar and one small, because you can never get all the marshmallow cleaned out in time. Also, this is at least a 2-person gig. usually it's my mom, brother, and me. not too sure on cooking time, I never pay attention. When I was younger, it felt like forever, but doesn't feel so long now. Servings depends on how big you cut the pieces. we usually do 1-inch square.