Ribs are Boiled then glazed in a sweet sauce made of fruit juices, soy sauce, and aromatics. An element of smoke is added as they are finished on the grill.
Simmering Recipe Ideas for the Outdoors
Simmering is a very popular way of cooking in the outdoors as it is very tolerant of the fire fluctuations yet not impacting the flavor and doneness of the recipe being cooked.
Boiling is included in this section as although something is often 'brought to the boil' very few things are actually cooked in this method, rather the dish once boiling then being reduced to a simmer to actually cook.
There are also a lot of ways to cook this meeting, hanging over a fire, in a fire, on BBQ grates, on a gas stove, and similar. Just as long as there is enough heat to bring the fluids to a slow simmer.
If simmering is of interest then these recipe collections may also have some ideas for you...