Quick and Easy Pointed Cabbage Recipe

Ingredients

• 1 tablespoon butter, or more to taste
• 1 shallot, chopped
• 1 whole pointed cabbage, cut in fine strips
• 0.5 cup vegetable broth
• 1.5 teaspoons brown sugar
• salt and freshly ground black pepper
• 1 tablespoon balsamic vinegar, or more to taste