Mac & Cheese with Soubise Recipe
Mac 'n cheese gets a French white sauce makeover
Soubise (sue-BEEZ) is a classic French white sauce that deserves a place in the contemporary American kitchen. Simple to make with common ingredients, soubise is defined by the onion, this one including both onion and shallot, blended into a béchamel sauce. Good hot or cold, the versatile sauce goes well with roasted or grilled/barbecued meats and with vegetables. Here I turn it into the backdrop for hearty macaroni and cheese, an excellent side dish or vegetarian main course. Escoffier blanched his onions before adding them to the béchamel, but I think the sauce benefits from the complexity of the caramelized onions. Either way, the sauce is great with grilled onions or with seared scallops or sautéed chicken. And it can replace the béchamel base in the classic cheese soufflé.
Make the soubise:
- Melt half the butter in a medium pan over medium heat and add the onions and a four-fingered pinch of salt. Cook, stirring until the onions is nicely caramelized.
- In a small saucepan over medium heat, melt the remaining butter. Add the shallot and a three-finger pinch of salt and cook until some of the water has cooked out of the butter, about 1 minute.
- Add the flour, stir to mix it with the butter, and cook until the mixture has taken on a toasted aroma, a few minutes.
- Gradually whisk in the milk and stir with a flat-edged wood spoon or spatula, to make sure the flour doesn’t stick to the bottom of the pan, until the sauce comes up to a simmer and thickens, a few minutes more.
- Stir in a three-finger pinch of salt, the white wine vinegar, sherry, fish sauce, dry mustard, black pepper, nutmeg, cayenne, and smoked paprika (if using).
- Add the onion to the sauce and stir until heated through. Transfer the sauce to a blender and process until puréed, or purée in the pan with a hand blender.
- Keep the sauce warm over low heat. You should have about 2 cups/480 ml.
Cook the pasta just until al dente, drain, the return it to the pot. Use 1 tablespoon of the butter to spread on a 9-by-13-inch/23-by-33-centimeter baking dish or another appropriately sized, ovenproof vessel. Place the pasta in a large bowl.
Assemble: Sprinkle half of the Comté cheese into the soubise and stir until melted. Remove from the heat and pour over the pasta. Toss the pasta and pour it into the baking dish. Top with the remaining Comté. The pasta can be baked immediately or later in the day, or it can be covered and refrigerated for up to 3 days before baking.
Preheat the oven to 425°F/220°C/gas 7.
Sprinkle the pasta with the Parmigiano-Reggiano (if using). In a small bowl, toss the panko with the remaining melted butter and spread this over the top. Cover with aluminum foil and bake until heated through, about 30 minutes (longer if it has been chilled in the refrigerator). Remove the foil and bake until the cheese is nicely browned, or turn on the broiler/grill and broil/grill until the top is browned, 15 to 20 more minutes.
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