In another bowl, mix the egg yolks and lemon juice together until combined ... Keep the heat very low. The soup will thicken as the egg cooks. Take the pot off the heat and add the beaten egg ...
I had never seen this egg-thickened soup ... chicken breast is cool enough to handle, slice into 4 lengthways then cut across into strips and set aside. Whisk the remaining 4 eggs with the lemon ...
Add 1/2 cup of the rice, the egg yolks and the lemon juice and puree until smooth. Stir the puree into the simmering stock along with the chicken and the remaining 1 1/2 cups of rice and simmer ...