01 -
Heat 2 tablespoons of butter in a large nonstick pan over medium-high heat. Cook kielbasa pieces for about 3 minutes until browned and crisp, then scoop them out using a slotted spoon and set aside.
02 -
Fill a big pot with salted water, bring it to a boil, and cook the noodles until they’re just tender. Drain all the water and leave the noodles to cool for a bit.
03 -
Toss the cooked noodles and browned kielbasa into the cabbage mixture in the skillet, stirring until everything warms through evenly.
04 -
Using the same skillet with the kielbasa drippings, melt 2 more tablespoons of butter. Add the onions, garlic, and cabbage and cook at medium heat, stirring every now and then, until the cabbage softens in about 8 minutes.
05 -
Mix in the rest of the butter, mustard (if wanted), plus the salt and pepper. Dig in while it’s still hot!