Gruyère-stuffed Salmon Patties with Salad

Name: Gruyère-stuffed Salmon Patties with Salad
Prep time: 20 min
Cook time: 1 h 5 min
Total time: 1 h 5 min
Yield: 4 portions
Ingredients: 80 g white bread; 15 g olive oil; 50 g unsalted butter; 350 g floury potatoes; 50 g water; 1 tsp fine sea salt; 1 tsp ground black pepper; 30 g spring onions; 350 g fresh salmon fillets, skinless; 80 g Gruyère cheese; 120 g mixed baby leaf salad; 100 g cherry tomatoes; ½ tsp fine sea salt; 1 pinch ground black pepper; 1 Tbsp olive oil; ½ Tbsp balsamic vinegar