My Irish grandfather taught me this secret. Just 4 ingredients for the most flavorful, tender dinner you will ever make this March.

on HIGH for 3–4 hours, until the onions are very soft and translucent, the sausages are cooked through and tender, and the liquid has darkened into a rich brown onion gravy.

Finish the gravy texture: If you’d like a slightly thicker gravy, remove the lid for the last 30 minutes of cooking to let some liquid evaporate, or transfer a ladleful of onions and liquid to a bowl and mash them with a fork before stirring back in. The onions themselves are the thickener here, just as my grandfather did—no