*With some caramel recipes, you have to be very exact with the temperature of the caramel but I think this recipe is more forgiving because the caramel will be combining with the marshmallows and that gives it the perfect consistency! I don't usually check the temperature of the caramel mixture in this recipe, I just watch the clock and let it boil for about 2-2 1/2 minutes. I did check the temperature at this point and it was at 246°F, so if you aren't sure if the mixture is "done", you can use a thermometer to make sure the temp is around 245°.