Prosciutto, Brie and Apple Panini with Scallion Butter

panini sandwich construction Prosciutto, Brie and Apple Panini with Scallion Butter Recipe from Olga's Cup & Saucer in Providence, Rhode Island, as published in Food & Wine Magazine. Serves: 4 Ingredients: 4 tablespoons plus 2 teaspoons unsalted butter, softened 1 scallion, finely chopped 1/2 teaspoon fresh lemon juice 1/4 teaspoon Dijon mustard 4 soft hero or ciabatta rolls, or 1 long baguette, halved lengthwise 3/4 pound thinly sliced prosciutto 1/2 pound Brie, rind removed, cheese cut into 4 pieces 1 large Granny Smith apple, peeled, cored and thinly sliced Preparation: 1. In a bowl, beat 4 tablespoons of the butter until creamy. Stir in the scallion, lemon juice and mustard until smooth. 2. Preheat a griddle over low heat. Spread the scallion butter on the cut sides of the rolls. Lay the prosciutto on the bottom halves; top with the Brie and the apple slices and close the sandwiches. Lightly spread the remaining 2 teaspoons of butter on the outside of the rolls (it will be a very thin layer). 3. Put the sandwiches on the griddle. Cover with a heavy skillet and cook over low heat, turning occasionally, until toasted and the Brie is melted, 10 minutes. Cut the panini in half and serve.