Place 2 pounds bone-in chicken in the Instant Pot and cover fully with 12 cups water. Add a few bay leaves, peppercorns, and salt for flavor, if desired. Secure the lid and set to Manual to pressure cook for 25 minutes. Allow a 15-minute natural pressure release (NPR) before venting the remaining pressure.
Carefully remove the chicken and shred the meat. Strain the broth through a fine-mesh sieve into a large bowl.
In a separate medium pot, melt 2 tablespoons butter over medium heat. Add 1 cup medium grain rice and toast for 3-5 minutes until the grains are opaque and smell nutty.
Add the broth to the toasted rice and bring it to a boil. Reduce heat to a gentle simmer. Cook uncovered for 10 minutes until the rice is tender.
While the rice simmers, whisk the 3 egg whites from 3 eggs in a medium bowl until very frothy (nearly soft peaks). Gently whisk in the 3 yolks and the juice of 2 lemons.
Temper the eggs by slowly drizzling 3 cups of the hot broth into the egg mixture, whisking constantly so the eggs don't scramble.
Finely chop the chicken and fold it into the soup. Add chopped ¼ cup fresh dill and season with salt and black pepper to taste. Serve immediately.
Notes
Storage: Store leftover soup in an airtight glass container in the refrigerator for up to 4 days. Be aware that the rice will continue to absorb liquid as it sits, naturally thickening the soup. To reheat, transfer the desired amount to a heavy-bottomed pot on the stovetop over low heat, stirring gently and adding a splash of broth to restore the consistency. You can freeze the soup for up to 3 months but the eggs might curdle. The flavor will be consistent but the texture may change. Helpful Tips:
Achieve frothy eggs: Don't skip whisking the egg whites into a voluminous foam before adding the yolks and the lemon juice. This trapped air is what creates that signature cloud-like texture that defines traditional Avgolemono.
Perfect tempered eggs: Add the hot broth to the egg mixture in a very slow, steady drizzle while whisking vigorously. A gradual temperature increase prevents the eggs from scrambling or dropping.
Residual heat finishing: Stir the tempered eggs into the pot only after turning off the heat.
Eggs curdled or clumped? If the eggs scrambled, pulse the liquid base with an immersion blender (before adding the chicken) to restore the smooth texture.
The information shown above is an estimate provided for your convenience by an online calculator. It should not be considered as a substitute for a professional nutritionist's advice. Please see our complete Nutritional Information Disclaimer.