Potato Onion and Garlic Gratin Recipe

How to make it

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• Remove paper covering of garlic heads but do not peel or separate the cloves.
• Wrap well in foil and put them in the oven.
• Put onions on a double sheet of foil but do not wrap them then place in the oven.
• Bake garlic for one hour and onions for an hour and a half at 425.
• After an hour pull out the garlic heads unwrap and let cool for 5 minutes.
• Separate the cloves and squeeze them over a bowl so the softened garlic pops out into the bowl.
• After 1-1/4 hours pull out the onions.
• If they are not very soft almost collapsed put them back in for a few minutes.
• With a sharp knife cut off stem and root ends of the onions.
• Remove skin and first layer then put in food processor and puree.
• Reduce oven heat to 350.
• Beat together the onions, garlic, potatoes, salt and pepper then beat in buttermilk.
• Scrape mixture into a gratin dish then smooth top and sprinkle with the cheese.
• Drizzle milk evenly over top of potatoes and bake uncovered for 45 minutes.
• Serve immediately.