The Associated Press. Note: I cut the servings in half but caramelized the entire three pounds of onions and saved the rest for other recipes. Perfect for weekday meals. Because the onions are caramelizing while you're at work or school, and all you have to do when you arrive home is boil the water for the pasta and lightly wilt the arugula. The only thing I did differently was to serve the ingredients separately in lieu of stirring everything together.