Can I use regular gnocchi instead of kopytka?
Yes. Kopytka and gnocchi are interchangeable; gnocchi may be slightly softer. Cook either until they float, then simmer 1-2 minutes more.
What type of kielbasa works best?
Smoked Polish kielbasa is traditional and adds authentic flavor. Any quality smoked sausage works; avoid fresh kielbasa, which lacks the smoky depth.
How do I prevent the sauerkraut from becoming mushy?
Drain it thoroughly before cooking and add it mid-way through rather than at the start. Simmer for no more than 10-15 minutes after combining.
Can I make this ahead?
Yes. Assemble and refrigerate up to 2 days before cooking, or cool completely after cooking and reheat gently over medium-low heat with a splash of water.
Is this dish naturally gluten-free?
Sauerkraut, kielbasa, and spices are naturally gluten-free, but most kopytka contain wheat flour. Use gluten-free gnocchi or potato dumplings as a substitute.