In a saucepan, sauté the onions in a little oil. Prepare broth with 2 chicken bouillon cubes and 1.2 l water. Boil for 5 minutes, then keep warm.
Put the washed spelt into the pan with the onion. Cover with broth. Reduce and repeat until the spelt is cooked through (about 30 minutes).
At the end of cooking, add 20 cl of heavy cream.