1 Higgs: Well, it’s no hardtack ’n’ salt beef, but I’ll see what I can cobble together.
2 Wendy: Cobble? That be remindin’ me o’ the time we be marooned on a tiny island.
3 Wendy: We be havin’ to boil and eat our boots!
4 Higgs: Euurgh!
4 Wendy: Actually, it be makin’ a pleasant change from regular pirate food.

Eating Shoes.

Apparently, leather is actually edible and contains some nutritional value if not tanned - i.e. rawhide. Tanning leather removes a lot of the nutrients and replaces them with toxic compounds, so eating tanned leather isn't such a good idea.

Remember that next time you're marooned on a tiny island with no food.