German Red Cabbage

 This was really good. And easy.

• 1/2 large red cabbage, sliced 1/4-inch thick
• 1/2 onion, sliced
• 2 tablespoon butter
• 1 tablespoon sugar
• 1/4 cup balsamic vinegar
• Kosher salt
• Freshly ground black pepper
• fresh chopped  peeled apple 1/2- 1 cup. Optional.

Melt the butter over medium heat, saute the cabbage and onion until soft, about 5 minutes.

Sprinkle mixture with sugar. Add balsamic vinegar and apple (if desired). Toss to coat evenly. Bring to a simmer, then reduce to medium low. Cook until soft, approx 20 minutes, stirring occasionally. Salt and pepper.