Giada sets her cocoa- and coffee-rubbed grilled flank steak with a tasty mascarpone, catsup and horseradish sauce to make the best steak sandwich! Register for #discoveryplus to stream more of #GiadaEntertains:. Get the recipe ▶ Subscribe to Food Network ▶ Whether it's a casual video game night, a household get-together or a huge celebration, Giada De Laurentiis shares suggestions, tricks and dishes for planning the best occasion. Invite to Food Network, where finding out to cook is…