Preheat your oven to 375 degrees Fahrenheit.
Cut puff pastry into 12 pieces. Place pastry rectangles on a cookie sheet and top each with about 2 tablespoons shredded Gouda and a few sliced apples. Bake for about 20-25 minutes, or until the pastry is golden brown. Top with chopped fresh thyme and serve warm.
Recipe adapted from hauteapplepie.com