"What's the name of this dessert?" the DH asked ten times last night. "I don't know," I responded sweetly each time. I wasn't being evasive -- this is a dessert with no name. The recipe, written on a sheet of note paper "From the desk of Phyllis A. Roberts" is simply a list of six ingredients and two instructions. But from this cryptic note, emerged a sweet and salty meringue pie. And one that probably originated in the test kitchen of Ritz Crackers. But, tasty as it is, this is an American…