I can’t believe I haven’t published this recipe for you yet! I make this once a month and then use it in other dishes. This is so easy and tasty and lasts for up to a month in the refrigerator– unless you are like me and use it all up first! Three pounds of onions fits in a one quart plastic container when cooked. Make sure the lid shuts air tight (tupperware, rubbermaid, gladware, mason jars, etc.).
Suggested uses for caramelized onions: put a scoop in any dish that you usually would use fresh chopped onions, like meatloaf, hamburgers or potato soup) or make it into super easy french onion soup– put a scoop in a bowl, cover with beef broth. Then put a crostini on top and some cheese and broil until cheese is melted. Seriously– french onion soup in five minutes or less!
You will save so much time if you take 8 hours and make this in advance. Enjoy the extra time and the extra flavor!
3 lb. yellow onions, sliced 1/4 inch thick
1 stick butter
Put onion slices into the crock pot. Put one stick butter on top. Cook on low for 7-8 hours. Cool. Store in airtight container in the refrigerator for up to one month.