Using your hands, lightly combine all the meatball ingredients including 1/2 cup of Romano except the water in a large bowl until well mixed. Don't overmix it. Add the water and using your hands again, gently incorporate it.
1/2 lb ground chicken, ½ lb ground Italian sausage, ¾ cup Romano Cheese, 1 Tbsp parsley, 1 egg, 2 slices white or wheat bread, 2 tsp salt, 1 tsp ground black pepper, ¼ cup warm water, 1 Tbsp olive oil
Put a little water in a small cup or bowl. Using a teaspoon or small scoop, make small meatballs scooping with one hand and placing in the fingertips of the other hand, lightly shaping the ball. Dip fingers into the water bowl in between making each meatball. Place meatballs on a lightly sprayed or parchment-lined baking sheet.
Meanwhile, bring 2 cups of the chicken stock to a low boil in a medium saucepan. Keep on a low simmer.
3½ qts chicken stock
After all the meatballs are made, gently place them in the simmering broth and cook for 5 minutes. You might have to do this in batches. [See notes below for making extra or making ahead]
Through a fine mesh strainer, strain the meatball poaching liquid and add it to the other pan with the other broth.