LEMON RISOTTO

an onion, a stalk of celery, two ounces of butter, a tablespoon of oil, three hundred grams of arborio rice, lemon juice, a liter of vegetable stock, cream, rosemary girl a branch, a bud, two ounces grated Parmesan.
Instructions for preparation:
Arborio rice cooked al dente with vegetable broth to which is added a mixture of cream, lemon and parmesan cheese. To make it more succulent can be incorporated bits of bacon
