Gooey Gouda Puff Pastry Bites

Direction :

Heat oven; roll, trim, and prick pastry:
Preheat oven to 425°F. On a lightly floured surface, roll out pastry to an approximately 11-by-16-inch rectangle. Trim edges straight to a 10-by-15-inch rectangle. With the tines of a fork, prick pastry all over at 1/2-inch intervals.
Cut pastry and press into pan; add mustard and chill:
Cut into twenty-four 2 1/2-inch squares (a 4-by-6 grid). Press each square into the cup of a mini muffin tin. Spoon 1/4 teaspoon Dijon into bottom of each pastry shell. Refrigerate until pastry is firm, at least 15 minutes.
Bake until puffed and lightly golden; press in cheese:
Bake until pastry cups are puffed, golden along edges, and beginning to set, about 15 minutes. Working quickly, remove from oven and press a cube of cheese into center of each pastry with the handle of a wooden spoon. (Cheese should depress pastry to reach bottom of cup.)
Bake until cheese is melted; serve topped with jam and pepper:
Continue baking until pastry is golden brown and cheese is melted, 8 to 10 minutes more. Let cool in tins a few minutes. Transfer to a serving tray, top with jam, and sprinkle with pepper. Serve warm.