Slow Cooker Sweet and Sour Kielbasa with Pineapple Recipe

Place pineapple kielbasa sausage and onions into the bottom of a slow cooker.

Combine water and cornstarch in a bowl and whisk until smooth.

Whisk together reserved pineapple juice rice vinegar brown sugar ketchup and soy sauce in a saucepan. Bring mixture to a simmer; pour in cornstarch slurry. Whisk until well combined and thickened slightly 3 to 5 minutes. Remove from heat and pour over the ingredients in the slow cooker. Mix well to coat.

Cover and cook on High until kielbasa is cooked through and mixture has thickened and reduced 3 to 4 hours.