Preheat the oven at 200 degrees C (450 degrees F)
Using a rolling pin roll out the Puff Pastry (500 gram) until is about 4mm thick.
With a pizza cutter cut the pastry in 7x7cm squares.
With a sharp knife make a cut in all 4 corners of the square.
Place 1 or 2 slices of the Pancetta (150 gram) and some of the Medium Cheddar Cheese (150 gram) in the middle of the square
Take all the 4 corners of the square and stick them together in the middle as to create a "flower" effect.
Place all the pastries in a baking tray previously lined with some parchment paper or oven grease paper.
Place the baking tray in the oven for 20 minutes or until golden brown.