Salmon and spinach sweet potatoes

Ingredients

• 700 g sweet potatoes
• 1 tbsp rapeseed oil
• 1 pinch salt
• 250 g salmon fillet
• 3 tbsp Kikkoman Ponzu Citrus Seasoned Soy Sauce - Lemon
• 1/2 tsp freshly ground black pepper
• 1 tbsp olive oil
• 1/2 tbsp butter
• 1 small onion, chopped
• 1 large garlic clove, chopped
• 150 g baby spinach
• 130 ml whipping cream (30%)
• 30 g blue cheese
• 2 tbsp Kikkoman Naturally Brewed Soy Sauce
• 1/4 tsp nutmeg
• 1/4 tsp freshly ground black pepper
• 120 g Greek yoghurt
• 2 tbsp Kikkoman Ponzu Citrus Seasoned Soy Sauce - Lemon
• 1 tsp honey
• 2 tbsp parsley, chopped
• 2 tbsp chives, chopped