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SERVES:
6

INGREDIENTS:

approx. 1 1/2 pounds potatoes
1 cup heavy cream (plus 1/4 cup if needed)
1 cup milk
2 Tbs butter
1/3 cup finely diced onion
1 large clove garlic, minced
2-3 tsp finely chopped fresh thyme (optional)
1/3 cup chopped green onions
salt and pepper to taste
1 cup grated Gruyere cheese

PROCEDURE:

Preheat the oven to 400 degrees and judge how many potatoes you need by filling one 8 x 8-inch square baking pan with a single layer of small to medium sized potatoes.

The trick to this recipe is that you need to peel and slice the potatoes no more than 1/8th inch thick so add one cup of light cream and one cup of milk to a large mixing bowl and cut each peeled potato in half....and then, with the flat side down, cut it crosswise into 1/8th inch thick slices....adding the slices to the milk as you go.

Next, melt 2 Tbs butter in a large, heavy bottomed pot and saute about 1/3 cup finely diced onion and 1 large finely minced clove of garlic to soften. Add 2-3 tsp of finely chopped fresh thyme at this point as well.

Once the onions have softened up, carefully add the potatoes and cream and let that simmer along for 8-10 minutes.
Add another 1/4 cup of heavy cream if it seems like it needs it and adjust the heat so it is just simmering along and gently stir it occasionally....and, once the potatoes are just soft to the tooth, stir in 1/4-1/3 cup chopped green onions and season with salt and pepper to taste.

Then carefully transfer that to the 8 x 8-inch baking dish...on top of a baking tray.....pat it down a little bit....sprinkle on about 1 cup of grated Gruyere cheese...and pop the tray onto the center rack of the preheated oven.

It's going to need about 15 minutes in the oven......it'll be bubbling all the way through and lightly browned on top when it is done.

HINTS:

Use grated white cheddar cheese instead of Gruyere if you like. For better presentation, let cool a little and set up a bit before slicing.
Very carefully use a food processor with a slicer attachment or a mandolin to slice the potatoes if you like.