Preheat the oven to 400°. In a large roasting pan, season the capon inside and out with salt, pepper and the herbes de Provence. Roast the capon breast side up for about 30 minutes, then turn it breast side down and roast for about 1 hour. Turn the capon breast side up and roast for about 1 hour longer, until an instant-read thermometer inserted in the inner thigh registers 160°.
Meanwhile, in a large, deep skillet, melt the butter. Add the white and shiitake mushrooms and season lightly with salt and pepper. Cover and cook over moderate heat, stirring occasionally, until the mushrooms are lightly browned, about 15 minutes. Add the vermouth and cook until almost evaporated. Add the stock and simmer over moderate heat for 5 minutes. Add the cream and Armagnac and simmer until the sauce has reduced to 3 cups, about 4 minutes. Remove from the heat and whisk in the potato starch mixture until incorporated. Cook over low heat, whisking until thickened, about 1 minute. Remove from the heat, stir in the tarragon and season with salt and pepper.
Lift the capon from the roasting pan, letting the cavity juices drain into the pan; transfer the capon to a carving board and let rest for 15 to 20 minutes.
Pour the pan juices into a glass measuring cup and skim the fat from the surface. Strain the juices into the mushroom sauce and reheat gently. Carve the capon at the table and serve with the mushroom sauce.

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Nutrition Facts

Per Serving Per 100 g

Amount Per 1 Serving
Calories	864.41 Kcal (3619 kJ)
Calories from fat	348.4 Kcal
		% Daily Value*
Total Fat	38.71g	60%
Cholesterol	1605.86mg	535%
Sodium	488.28mg	20%
Potassium	1463.92mg	31%
Total Carbs	13.34g	4%
Sugars	2.35g	9%
Dietary Fiber	0.87g	3%
Protein	101.51g	203%
Vitamin C	98.9mg	165%
Vitamin A	21.6mg	720%
Iron	78.3mg	435%
Calcium	70.5mg	7%

Amount Per 100 g
Calories	121.95 Kcal (511 kJ)
Calories from fat	49.15 Kcal
		% Daily Value*
Total Fat	5.46g	60%
Cholesterol	226.55mg	535%
Sodium	68.88mg	20%
Potassium	206.53mg	31%
Total Carbs	1.88g	4%
Sugars	0.33g	9%
Dietary Fiber	0.12g	3%
Protein	14.32g	203%
Vitamin C	14mg	165%
Vitamin A	3mg	720%
Iron	11mg	435%
Calcium	9.9mg	7%

* 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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