Blue cheese burger with cabbage | Castello®️

Ingredients

• 60 ml vinegar
• 85 g sugar
• 2 red onions in thin wedges
• 120 ml creme fraiche 18%
• 3 tbsp barbeque sauce
• 300 g finely shredded cabbages
• 2 tsp freshly squeezed lemon juice
• ½ tsp coarse salt
• freshly ground pepper
• 1 cucumber
• 450 g beef mince, approx. 6 % fat
• 1 tsp coarse salt
• 4 wholemeal bread rolls
• 2 grilled corns on the cob
• 1 Castello® Blue cheese slices