Preheat oven to 400 degrees F. Butter a 1 1/2-quart shallow baking dish.
Bring a large saucepan of salted water to a boil. Peel potatoes and cut into 1/8-inch slices - a food processor is good for this. Add potatoes to boiling water and cook 4 minutes. Drain potatoes thoroughly in a colander.
Arrange 1/3 of the potatoes in baking dish, top with 1/3 of the cheese, 1/3 of the thyme leaves, and sprinkle with salt and freshly ground pepper. Repeat twice more, ending with a layer of cheese and thyme.
Heat milk just to boiling. In a small bowl whisk egg and add hot milk, stirring. Pour evenly over potatoes. Bake 30 minutes, or until top is golden and potatoes are tender.
Tools You May Need
Tools You May Need
Price and stock may change after publish date, and we may make money off
these links.