Gretchen's Casserole - Mid-Century Menu

Ingredients

• 1 pound 4 oz canned sauerkraut
• 1 pound 4 oz canned apple slices
• ⅓ cup packed brown sugar
• 2 tbsp vinegar
• ¼ cup minced onion
• 2 tbsp butter or margarine
• 24 oz canned luncheon meat (SPAM)
• ¼ cup packed brown sugar
• 2 tsp prepared mustard