the rest of the casserole is ready.
Very thin slices soften more consistently and absorb more flavor.
Should You Soak the Potatoes?
Soaking is not necessary for this casserole.
The starch on the potatoes can actually help the layers feel cohesive once baked.
Why the Onion Is Important
Onion does more than add flavor.
As it cooks, it releases moisture and softens between the potatoes and corned beef.
It also helps balance the salty richness of the canned meat.
Can You Use More Onion?
Yes.
If your family enjoys onion,
