Boil the rice in salted water and then drain in a colander.
In the meantime, peel the onion, cut into very fine cubes and then simmer in a pan with butter over low heat. Add the gorgonzola and let it melt. Everything on low heat so that nothing burns.
Meanwhile, finely chop the rosemary and garlic. Then mix everything together with 2 tablespoons of olive oil into the rice, done.
Tip: The Gorgonzola rice can be wonderfully heated in the microwave.