Place the potatoes in the bottom of a 4–6 quart slow cooker, then add the sliced onions. Arrange the sausage pieces and bacon on top.
Tip: Keeping the potatoes on the bottom ensures they cook evenly and become soft and tender.
Step 4: Cook the Coddle
Pour the broth over the ingredients—it shouldn’t fully cover them. Cover and cook on LOW for 6–8 hours or HIGH for 3–4 hours.
How to tell it’s ready: The potatoes should be fork-tender, and the onions should be soft and almost melted into the broth.
Step 5: Finish Gently
Give the mixture a light stir before serving, just enough to distribute the flavors without breaking up the potatoes.