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• Recipe Overview
• Ingredients
• Processes - Utensils
• Instructions

• Cuisine

  European >> French >> French

• Dietary Style

• Source

  Genius Kitchen(food.com)

| 1. Preheat oven to 375 degrees F (190 degrees C). Grease a 9x13 inch casserole dish. Heat 2 tablespoons of butter in a large skillet over medium heat. Stir the onions into the pan; cook and stir until very soft and golden brown, about 15 minutes. Stir in sherry vinegar. Transfer to a small bowl, and reserve. | 2. In the same skillet, melt 2 more tablespoons butter. Whisk in 2 tablespoons flour. Stirring constantly, cook over medium heat until the flour smells like baked pie crust, about 3 minutes. | 3. Slowly whisk in milk, about 1/2 cup at a time, then whisk in nutmeg, cayenne pepper, and thyme. Bring to simmer, and cook until thickened, whisking constantly, 3 more minutes. Transfer to a bowl and reserve. | 4. Melt remaining 2 tablespoons butter in clean skillet; stir in panko until all crumbs are coated; reserve. Bring a large saucepan of salted water to a boil over medium heat, and boil beans until bright green and crisp but not raw tasting, 3 to 4 minutes. Drain very well. | 5. Spoon half of the caramelized onions into the prepared casserole dish; top with green beans. Season with salt and black pepper. Spread reserved white sauce over the green beans; sprinkle with half of the Gruyere cheese. Top with the rest of the onions, and use the back of a spoon to push onions down into sauce and cheese. Top with the buttered panko crumbs, the remaining Gruyere, and Parmesan cheese. | 6. Bake in the preheated oven until hot throughout and lightly browned, about 30 minutes. Let sit 10 minutes before serving. | ---------------------------------------------------------------------------

Estimated Nutritional Profile for Ingredients

Ingredient Name	Quantity	Unit	State	Energy (kcal)	Carbohydrates	Protein (g)	Total Lipid (Fat) (g)
butter	2	tablespoons		171.0	7.857	5.343	14.4
yellow onion	2		sliced	-	-	-	-
salt pepper	1	pinch	ground	-	-	-	-
sherry wine vinegar	1	tablespoon		-	-	-	-
butter	2	tablespoons		171.0	7.857	5.343	14.4
purpose flour	2 1/2	1/2		-	-	-	-
milk	2 1/2	cups		372.1	29.158	19.215	19.947
nutmeg	1	pinch	ground	0.7219	0.0678	0.008	0.0499
cayenne pepper	1	pinch		0.3578	0.0637	0.0135	0.0194
thyme	1/4	teaspoon	ground	0.69	0.1598	0.0228	0.0186
butter	2	tablespoons	melted	171.0	7.857	5.343	14.4
panko breadcrumb	2/3	cup		-	-	-	-
green bean	2	lbs	trimmed	281.2276	63.2309	16.6015	1.9958
gruyere cheese	4	ounces	shredded divided	468.342	0.4082	33.8045	36.6736
parmesan cheese	1/3	cup	grated	98.6667	10.6667	10.6667	1.3333

- Means that suitable USDA nutrition profile could not be mapped for this ingredient-unit combination.