Preheat your Oven: Start by preheating your oven to 375°F (190°C). Line a baking sheet with parchment paper to prevent sticking.
Combine the Ingredients: In a large bowl, mix together the 1 lb ground turkey, 2 cups seasoned bread crumbs, 1 cup cranberries (either fresh or dried), 1/2 cup chopped onion, 1/2 cup chopped celery, 1/4 cup fresh parsley, 1 tsp dried thyme, 1 tsp salt, and 1/2 tsp black pepper. Use your hands or a spoon to ensure all ingredients are well combined.
Add the Binding Agents: Stir in 2 large beaten eggs and 1/4 cup chicken (or turkey) broth until the mixture is evenly incorporated. This should form a slightly sticky mixture.
Shape the Mixture: With clean hands, take small portions of the mixture (about the size of a golf ball, or 1-1.5 inches in diameter) and roll them into balls. This step is where you can adjust the size based on preference.
Arrange on Baking Sheet: Place the formed balls onto the prepared baking sheet, ensuring they are spaced apart to allow for even cooking.
Bake: Place the baking sheet in the preheated oven and bake for 25-30 minutes, or until the balls are golden brown and cooked through. You can check for doneness by cutting one in half; it should be moist but not raw.