https://list-corp.com/how-to-prepare-a-perfectly-creamy-french-mornay-sauce-for-croque-monsieur/
The secret to elevating a good sandwich to a great one lies in the sauce. The Croque Monsieur, a French classic, is known for its decadent, toasty exterior,...
how tomornay sauceprepareperfectlycreamy