I want to try caramelizing onions in the oven (6 lbs thinly sliced with 1/2 stick of butter at 350 for about 2 hours). I will be using the caramelized onions to speed up the time it takes me to make Indian recipes that call for deeply browned onions. Can I add minced ginger and garlic to the onions before putting them in the oven (as I do when browning in a pan)? Any other spices/flavorings?
Any tips/insight for for would be appreciated. Thanks!