Tender slices of potatoes layered with a creamy sauce with generous amount of cheddar...this is one of the greatest potato comfort food recipes of all time.
Prep Time20mins
Cook Time1hr15mins
resting time15mins
Total Time1hr50mins
Course: Side Dish
Cuisine: French
Diet: Gluten Free
Keyword: homemade au gratin potatoes, potato gratin recipe, potatoes au gratin
Preheat the oven to 400°F. Butter a 1 ½ quart baking dish, or a 9x9 inch baking pan, or spray with nonstick spray.
In a medium bowl or a liquid measuring cup combine the chicken broth, cream, mustard, thyme, salt and pepper. Layer half the potatoes, in the prepared baking dish. Sprinkle over half of the cheese and pour over half of the liquid mixture. Repeat with the rest of the potatoes, cheese, and liquid.
Cover the pan with foil and bake for 30 minutes. Remove the foil and continue to bake for another 45 minutes or so, until the potatoes are tender (a knife slides in easily )and the top is browned and crispy. Let stand for 15 minutes before serving.