Moussaka
Ingredients For the Béchamel: 8 tablespoons unsalted butter ( 4 ounces ; 120 g ) 3/4 cup all-purpose flour ( 3.4 ounces ; 96 g ) you can use cassava flour too. 1 quart ( 945 ml ) whole milk Kosher salt and freshly ground black pepper Freshly grated nutmeg 2 ounces ( 1/2 cup ; 60 g ) shredded kefalotyri or pecorino romano 4 large egg yolks ( 60 g ) For the Meat Sauce: 2 tablespoons ( 30 ml ) extra virgin olive oil 2 pounds ( 910 g ) ground lamb or beef (at least 15% fat), or some combination (see note) 2 medium yellow onions ( 1 pound ; 455 g total), diced 4 medium garlic cloves ( 20 g ), minced 2 tablespoons ( 1 ounc...