Bratwurst, Potato, and Mustard Kraut Foil Packets - Frank's Kraut

Ingredients

• 1 cup beer (such as a lager or pilsner) or chicken broth
• 1 tbsp. Worcestershire sauce
• 3 tbsp. melted butter
• 1 tbsp. Cajun seasoning
• 1 ½ tbsp. cornstarch
• 1 ½ lbs. small yellow or red potatoes, cut into quarters
• ½ large red onion, thinly sliced
• 1 16 oz. jar Frank’s Mustard Kraut, lightly drained
• 5 uncooked bratwurst (about 19 oz.)
• Minced fresh parsley for garnish (optional)
• Aluminum foil
• Cooking spray