Easy German Red Cabbage

1 head of red cabbage, chopped
1 Gala apple, finely chopped
Red Wine Vinegar, to taste (1/2-1 Tbsp.)
Brown sugar, to taste (about 1 Tbsp.)
Olive oil
1/2 onion, chopped
1/2C. Chicken broth
Salt & pepper

-Heat oil and onion in medium saucepan and cook until onion become translucent.
-Add vinegar, sugar, broth and apple. Bring to a boil.
-Add cabbage, salt & pepper. Stir well.
-Cover & simmer until tender. (At least 30 minutes. I let mine simmer for about a hour)