Sweet potato

Use the same weight, cut to the same size. It is less sweet and holds shape better; add a pinch of sugar if the recipe relies on sweetness.

Use the same weight, peeled and cut to size; it is drier and starchier, so cook a little longer and add extra liquid if needed.

Use the same weight, cut into chunks; it is softer and sweeter, so add it later and cook briefly to avoid collapsing.