
Slow Cooker Sweet and Sour Kielbasa - sliced kielbasa cooked in the crockpot in a delicious sweet and sour sauce. This is perfect over rice for an easy weeknight dinner or served by itself for a party snack!
Put ketchup, brown sugar, butter, onion, white vinegar, water, and salt and pepper in the bottom of a slow cooker. Stir until combined.
Slice kielbasa into bite-sized pieces. Put in slow cooker and stir to coat with sauce.
Cook on low for 2 hours or high for 1 hour.
Serve hot, over rice if desired.