Place the cubed pork in the bottom of the slow cooker so it cooks evenly and stays moist.
Spread the drained sauerkraut over the pork to distribute the tangy flavor throughout the stew.
Add the frozen diced potatoes, sliced carrots, and pearl onions on top of the sauerkraut.
Pour the chicken broth over the ingredients to create the cooking liquid.
Sprinkle the caraway seeds evenly across the surface and tuck in the bay leaf. Season with salt and black pepper.
Cover the slow cooker and cook on low for 7 to 8 hours until the pork is fork-tender.