Melt butter in a large pot over high heat. Saute mushrooms in butter until liquid evaporates, about 10 minutes. Stir in garlic, thyme, and rosemary, and cook for 1 minute. Pour in chicken broth, and simmer until liquid evaporates. Season with salt and pepper. Set aside.
Preheat to 375 degrees F (190 degrees C). Butter a 13x9x2 inch baking dish.
Arrange 1/3 of the potatoes in prepared dish, overlapping slightly. Spread half of the mushroom mixture evenly over the potatoes, and then sprinkle 1/3 of the cheese over mushrooms. Repeat layering, and then arrange remaining potatoes on top.
In a large bowl, mix together the half and half, heavy cream, 1 1/4 teaspoon salt, and 1 teaspoon pepper. Pour mixture over potatoes. Cover loosely with foil.
Place baking dish on middle rack in oven. Bake until potatoes are tender, about 1 hour and 15 minutes. Uncover. Sprinkle remaining cheese over potatoes. Bake until cheese melts, about 15 minutes longer.

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Nutrition Facts

Per Serving Per 100 g

Amount Per 1 Serving
Calories	391.49 Kcal (1639 kJ)
Calories from fat	220.39 Kcal
		% Daily Value*
Total Fat	24.49g	38%
Cholesterol	74.44mg	25%
Sodium	815.97mg	34%
Potassium	964.24mg	21%
Total Carbs	30.02g	10%
Sugars	3.68g	15%
Dietary Fiber	3.6g	14%
Protein	15.87g	32%
Vitamin C	25.7mg	43%
Vitamin A	0.1mg	2%
Iron	92.9mg	516%
Calcium	380.8mg	38%

Amount Per 100 g
Calories	108.35 Kcal (454 kJ)
Calories from fat	61 Kcal
		% Daily Value*
Total Fat	6.78g	38%
Cholesterol	20.6mg	25%
Sodium	225.83mg	34%
Potassium	266.87mg	21%
Total Carbs	8.31g	10%
Sugars	1.02g	15%
Dietary Fiber	1g	14%
Protein	4.39g	32%
Vitamin C	7.1mg	43%
Iron	25.7mg	516%
Calcium	105.4mg	38%

* Percent Daily Values are based on a 2000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.
Find out how many calories should you eat.

Tastes

salty
savory
bitter
sweet

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