Stir every 30 seconds until you get a smooth consistency. Remember to always check that the caramels you by are fat free there are some that aren't. Microwave Tip Be careful what you microwave your foods in. I always hesitate to use anything that does not say microwave safe somewhere on the dish. There is a reason why dishes are labeled.
Many plastics can give off toxins when heated.
You cannot always be sure if a given item will or will not give off these toxins unless it has the microwave safe rating. Also, many plastics can warp and even melt at comparatively low temperatures in a microwave. You should also avoid using take-out packaging unless they are labeled microwave safe and you are absolutely sure they contain no metal, which can spark and damage your microwave or cause a fire. Any packaging that contains metal or tin foil should be avoided for this reason. Waxed papers should also not be used as the wax can melt onto your food.