Ham and Cheese Palmiers
America’s Test Kitchen
If this is your first time making these, you may worry when you slice the uncooked palmiers; they look tiny and are filled with lots of gaps. No worries! The puff pastry puffs up and fills them all right in. You can also experiment with other flavor combinations.
1 [9 1/2 by 9 inch] sheet frozen puff pastry, thawed
2 tablespoons Dijon mustard
2 teaspoons minced fresh thyme
4 ounces thinly sliced deli ham
2 ounces Parmesan cheese, grated [1 cup]