Sauté onion, pepper, garlic and celery in the butter or bacon fat in a heavy skillet. (Do not allow to brown.)
When tender, add unwashed rice. Stir until well mixed and all grains are semi-fried. Add tomato sauce or paste, salt and paprika, and 2 cups boiling water. Stir until well mixed. Do not cover [see Note]. Cook over a very low heat until rice is dry, light and fluffy, about 50 minutes. Grains should be whole and firm. (If it is necessary to stir when adding water, use a fork. Refrain from stirring, if possible.)
Variations: Crushed salted almonds or diced stuffed olives make this a glamorous party dish. (A bit of thyme or a bay leaf, cooked in the sauce, adds a spicy taste.)
Some folks like rice dry and some plenty of sauce. These things have to be worked out to suit your own family taste, which only you can determine. But wet or dry, a Spanish sauce simply does things to plain rice and brightens up the meal!
Nutrition information per serving: