This Cheesy Mushroom Melt Is an Homage to Classic Diner Dishes
At Brooklyn's all-day restaurant Gertie, the secret to the mushroom melt is fancy cheese and "salt and vinegar" mushrooms.
Cheese Sauce Recipe
Don't limit yourself to using this sauce on fries. Use it for macaroni and cheese, throw in some salsa and serve it with tortillas, or straight up drink it (yes, it is that good).