I printed this recipe out ages ago and finally made it. I made just half a recipe, and I can imagine using the whole 10 pounds of onions next time. It came out great! The only changes that I made were that I used a mix of butter and olive oil instead of just butter and that I added a bit of thyme from looking at some other recipes. I used it as a garnish for baked chicken; really tasty. This is a fantastic and simple recipe, thanks for posting, Dib's.
Good stuff! I love basalmic vinegar wih onions.