Add garlic and whole-grain mustard and season with salt and pepper. Cut kielbasa into 4-inch pieces, then slash down the center to butterfly. Preheat the grill or light coals to medium-hot on one ...
2. Meanwhile, in a soup pot, heat the oil. Add the kielbasa and cook over moderately high heat until lightly browned, about 4 minutes. Add the onion and cabbage and cook until softened ...