I love risotto and have not made it before so I am adding this simple recipe as I will be making this and I also added the mushrooms and garlic to suit my taste. You can omit those if you like, but why? :)
In a medium saucepan cook the onion in hot butter until tender. Add the garlic and mushrooms, cook 1 minute more. Add the rice and cook and stir 2 minutes more. Carefully stir in the water, bouillon granuales, and pepper. Bring to a boil then reduce heat. Simmer covered 20 minutes (do not lift lid during)
Remove saucepan from heat and stir in peas. (does not say to thaw them) Let stand, covered for 5 minutes. Rice should be tender but slightly firm and mixture creamy. (can stir in a little water if needed) Stir in parmesan cheese.