Colcannon (Irish Mashed Potatoes with Cabbage)

slices bacon ((cut into ¼-inch strips))

green onions ((thinly sliced))

lbs cabbage ((thinly sliced) (675g))

Salt (and pepper to taste)

lbs potatoes ((peeled and cubed) (675g))

butter ((28g))

mustard powder

Salt (and pepper to taste)

warm milk ((120ml))