In a large saucepan, heat the oil until shimmering. Add the shallots and cook over moderate heat, stirring occasionally, until softened, about 8 minutes.
Add the wine and cook until reduced to 1/4 cup, about 25 minutes.
Add the cream and bring to a boil.
Simmer over moderately low heat until thickened and reduced to 4 1/2 cups, about 1 1/2 hours.
Strain the cream sauce through a fine sieve into a medium bowl, then season with salt and pepper.
Bring a large saucepan of salted water to a boil. Add the carrots and cook over high heat until crisp-tender, about 5 minutes.
Drain and pat dry.
Melt 2 tablespoons of the butter in the same saucepan. Add the ginger and cook over moderate heat until fragrant, about 2 minutes. Add the carrots and cook, tossing, until coated.
Add 1 1/2 cups of the cream sauce and simmer over moderately low heat until the carrots are tender and the sauce is slightly reduced, about 4 minutes.
Transfer to a bowl, cover and keep warm. Clean the saucepan.
Fill the same saucepan with water and bring to a boil.
Add the onions and cook over high heat until crisp-tender, about 5 minutes. Drain and rinse in cold water.
Trim the root ends and pull off the skins.
Return the peeled onions to the saucepan.
Add 1 1/2 cups of the cream sauce and the horseradish.
Simmer over moderate heat until the sauce is slightly reduced and the onions are tender, about 2 minutes longer. Transfer to a bowl, cover and keep warm.
Melt the remaining 4 tablespoons of butter in a very large, deep skillet.
Add the garlic and cook over moderately high heat until lightly browned.
Add the mushrooms and thyme and cook, stirring occasionally, until the liquid is evaporated and the mushrooms are golden, about 15 minutes. Stir in the remaining 1 1/2 cups of cream sauce, season with salt and pepper and cook until the sauce is slightly reduced and the mushrooms are very tender.
Transfer to a bowl.
This can be made ahead, refrigerated, and reheated.

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Nutrition Facts

Per Serving Per 100 g

Amount Per 1 Serving
Calories	673.13 Kcal (2818 kJ)
Calories from fat	500.69 Kcal
		% Daily Value*
Total Fat	55.63g	86%
Cholesterol	178.42mg	59%
Sodium	579.4mg	24%
Potassium	773.21mg	16%
Total Carbs	36.93g	12%
Sugars	13.33g	53%
Dietary Fiber	6.17g	25%
Protein	7.47g	15%
Vitamin C	18.3mg	31%
Vitamin A	0.8mg	28%
Iron	0.8mg	5%
Calcium	161.7mg	16%

Amount Per 100 g
Calories	133.74 Kcal (560 kJ)
Calories from fat	99.48 Kcal
		% Daily Value*
Total Fat	11.05g	86%
Cholesterol	35.45mg	59%
Sodium	115.12mg	24%
Potassium	153.63mg	16%
Total Carbs	7.34g	12%
Sugars	2.65g	53%
Dietary Fiber	1.23g	25%
Protein	1.48g	15%
Vitamin C	3.6mg	31%
Vitamin A	0.2mg	28%
Iron	0.2mg	5%
Calcium	32.1mg	16%

* 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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