Grainy Mustard

Ingredients: 4 portions boneless, skinless salmon 10 leaves fresh sage 4 slices prosciutto 1 tbsp olive oil Salt and pepper 1 red onion sliced 1 lb (450 g) fresh green beans 2 cups baby red potatoes, halved 1 cup olive oil 1 sprig rosemary 2 cups fish stock 1 cup white wine 6 tbsp butter 4 tbsp grainy mustard 2…