Ok, so about the butter inside the slow cooker. Im using pyrex measuring cup inside of a large slow cooker w/ an oven thermometer on the bottom of the slow cooker and one inside the pyrex cup with some test water. The bottom of the pot is getting to near 250 degrees F. The water, however, according to the thermometer (turkey thermometer) is at about 180, atm and rising slowly. So do I want the water at 200 degrees roughly, or the crock pot at 200? Would this eqilibrium of pot at 250 and water at 200 be what I am trying to achieve?