Recipe - Pierogi Fillings Sauerkraut

SAUERKRAUT
2 pound Sauerkraut
1 lg Onion (thinly cut or sliced up )
Sugar to taste
Salt and pepper to taste
One half pound Diced bacon (optional) or
One half pound Diced salt pork (optional)
One half pound Butter (optional)
Fresh shredded cabbage
(optional)
Diced mushrooms (optional)

Rinse sauerkraut and drain well. Saute sauerkraut along with the onions
in butter, bacon or salt pork for approximately 20 minutes on low heat, in
a covered pan, stirring from time to time. Add salt, pepper, sugar
(mushrooms if desired). Cool. * It doesn't say what to do with the
shredded cabbage.