Prosciutto Dijon and Gruyere Puffs

Updated 7/6: yum to the yum yum. These were so very tasty. I will for sure make again, though I may seek out an alternative to the $13.99 Dufour pastry puff. It was excellent, but spendy. Updated-just found out Trader Joe's sells a good alternative. A few notes:

I rolled my dough to closer to 14 x 18. Not on purpose, but because I wasn't really paying attention and the dough was very easy to roll. I'm glad I did, because I was able to serve more people. You don't have to cook as long if you make it larger.

I forgot parchment paper, so I just buttered the pan.

I'm looking forward to trying other things like olive tapenade or other cheeses.

Full disclosure: I have not eaten these yet. We have family picnic on the 4th, and I wanted something I could make ahead of time and transport easily. I made this last night, then wrapped in plastic wrap and foil. I'm going to slice and bake them just before the cookout.

I will say this: so...stinkin...easy. And I really want to eat one now. I'll update next week with the details.

Prosciutto Dijon and Gruyere Puffs
1 package Dufour Puff Pastry
8 slices Prosciutto di Parma
3 Tablespoons Dijon mustard
1 cup Gruyere cheese, grated
flour for dusting
fresh ground black pepper

Preheat oven to 400 degrees F. Line a baking sheet with parchment paper and set aside.
Thaw puff pastry in the refrigerator for 2 to 3 hours. Once thawed, carefully unfold and lay on a floured work surface. If the pastry tears at the seam in the unfolding process, it’s not the end of the world, but try to keep it in one un-torn piece. Dust flour on top of the pastry as well.

Puff pastry will already be very flat, but with a rolling pin, roll the dough out to about 11×9-inches. Layer the eight slices of prosciutto on top of the puff pastry. Using a butter knife, layer the mustard on top of the prosciutto slices. Top with grated cheese, and as much fresh ground black pepper as you like.

Begin to roll the right side of the pastry in towards the center. Next roll the left side of the pastry in towards the center. Press together. Dough will not stick together, but if you brush away some of the excess flour on the center dough pieces, they will stay together better during baking.

With a sharp knife, slice the dough into 1/2-inch thick slices. Place on a baking sheet lines with parchment paper. Bake at 400 degrees F for about 12-15 minutes, until a deep golden brown.

Let cool on the pan for 5 minutes, then remove from baking sheet and serve warm or at room temperature.