Sulfur could be used to craft gunpowder

In real life, gunpowder was made using sulfur, charcoal, and saltpeter. Now with sulfur caves added to the game, we have two of the ingredients, and I think it would be a good idea to allow gunpowder to be crafted using sulfur spikes and charcoal (exact amounts could be balanced). I think this could be balanced potentially by using sulfur spikes in the crafting recipe, as they would be renewable but fairly slow, and not as available by just strip-mining a sulfur cave biome. This would make it significantly easier for players to take advantage of TNT or firework rockets before being able to build large-scale mob farms for gunpowder, but there would still be an incentive to build those mob farms once a player's gunpowder needs go past a certain point.. It would also be the new easiest way by far for peaceful players to obtain gunpowder.

It would also be a cute homage to the fact that gunpowder was originally known as 'sulphur' when it was first added to the game!