This is the amount for 2 small servings seen above. I use cooked rice instead of raw rice. The cooked rice was frozen (about 2/3 cup). I microwave it until the kernels were separated but still cold. In a non-stick frying pan I added light olive oil (about 1-2 tbs) and sautéed finely chopped red onion (1/2 medium) for few minutes. When the onion was soft, I added finely chopped fresh shiitake mushroom (2 large meaty ones I happened to have. They had a very intense flavor) and sautéed for an additional 2-3 minutes. I then seasoned with salt and pepper. I added the cooked rice and coated the kernels with oil. I then added sake (3-4 tbs) - or you could use white wine or not use any wine - and stir until all is absorbed. I added a ladle-full of the shrimp broth (warmed on low flame) at a time and kept stirring. When the liquid is absorbed, I added the next ladle-full of the broth. (I did not add any salt in the broth). After 3-4 additions of the broth, I mixed in thawed, shelled, salted shrimp (I used 3 per serving, this is rather large shrimp matching the size of the shrimp head). Keep stirring for 2-3 more minutes or until the shrimp is cooked, I added chopped parsley, seasoned with salt and pepper to taste. For good measure, I added a thin pat of butter at the very end. I garnished the risotto with the shrimp head (I fished it out of the broth). I think we used up all shrimp heads!
For a weekday evening, this is a mighty fine ending dish. This evening was a sort of Italian night and we started with leftover reheated home made pizza. Of course, we sucked out all the goodies from the head of the shrimp first, before enjoying the risotto. We had a bottle of decent red but I do not remember which one we had.