meatballs with onion sauce

My family is enjoying my daughter's new Unofficial Harry Potter Cookbook because she is cooking up some great meals for us!  These meatballs (we used turkey) were moist and delicious as was the sauce.  Mmmm!

meatballs with onion sauce (adapted from The Unofficial Harry Potter Cookbook, Dinah Bucholz)
1 pound extra lean ground beef (we used ground turkey)
1/2 cup fresh or dry breadcrumbs
1 large egg
1 onion, finely chopped
2 tablespoons chopped fresh parsley
1/2 teaspoon salt
1/4 teaspoon freshly ground black pepper
1/8 teaspoon ground nutmeg

onion sauce
2 tablespoons vegetable oil
1 onion, chopped
1 tablespoon all-purpose flour
1 (14 ounce) can chicken broth 

For the meatballs, combine the meat, bread crumbs, egg, onion, parsley, salt, pepper and nutmeg in a large bowl and mix thoroughly.  Form the meat mixture into 1 1/2-inch balls and set on a lightly greased cookie sheet.  Bake in a 350 oven for 30 minutes or so.
For the onion sauce, add 2 tablespoons oil to the skillet and heat.  Add the chopped onion and cook over medium heat, stirring occasionally, until golden brown.  Add the flour and stir to combine.  Pour in the chicken broth and cook, stirring constantly, until thickened and bubbling.  Return the meatballs to the skillet and simmer for 15 minutes.