The user's insert says that charcoal can be placed under the inverted lid support for the likewise inverted Dutch oven lid and the combination makes a great griddle. I had to try it to believe it. I'm a believer! A few layers of briquettes are needed in order to get it hot enough to sear meats. I found that if the briquettes are placed on a flat surface, the lower ones get starved for oxygen and extinguish. But if a way is devised to raise the lid support and charcoal on a (Weber, or other) grill up at least an inch, all the charcoal will continue to burn and the griddle/lid will reach the requisite high temp. I use a woodstove chimney/top thermometer as a temperature gauge. I've purchased a second lid support so as to be able to double my pancake output. (I have 10" and 12" Dutch ovens.) I assume the lid support used as such would work equally as well as a 'side burner' for all manner of cast iron griddles, pans, or pots.