Jerusalem Artichoke Soup Recipe

Name: Jerusalem Artichoke Soup Recipe
Yield: 4
Ingredients: 400g large Jerusalem artichokes; 50g unsalted butter; 2 cups (500ml) Maggie Beer Vegetable Stock; 1/2 tspn lemon thyme; 2 tspn lemon zest; Salt flakes, to taste; 2 tbspn lemon juice; 150g apples (approximately 1 small); 1 tbspn Maggie Beer Extra Virgin Olive Oil; Freshly cracked black pepper, to taste; 320g scallops with roe; 40g unsalted butter; 4 sprigs chervil, to serve; 2 tbspn lemon juice, extra