Recipes Chicken Wiener Sandwiches with Caramelised Onions | SOSCuisine

Ingredients

• 2 tsp olive oil
• 1 1/2 red onions
• 1 tbsp wine vinegar
• 2 tsp brown sugar
• 3/4 tsp caraway seeds
• 4 chicken sausages, smoked
• 8 slices rye bread
• 4 tsp Dijon mustard
• 40 g Gruyère cheese
• 1/2 tbsp butter, unsalted
• 1 pinch salt
• ground pepper to taste