Step 1

Pre-heat oven to 425º.

Step 2

Trim any fat from the steaks, sprinkle with pepper, spread tops of each with 1 Tbsp butter.

Step 3

In shallow roasting pan, (I use my metal 13x9 cake pan), bake in pre-heated oven, buttered side up, at 425º for 10 minutes.

Step 4

Place in fridge til cold. I pop it right into the fridge and set the pan on a dish towel.

Step 5

Roll out puff pastry a little and cut in half. Spread steaks with garlic, top with cheese.Place cheese side down onto center of pastry squares, fold pastry over, moisten edges and seal well. Place seam-side down onto baking sheet lined with parchment paper. Prick top with a fork, cover with plastic wrap, and re-chill for 1 hour.

Step 6

Beat egg with oil, and brush pastry with it. Bake in center of pre-heated 425º oven for 25 minutes for med-rare. LESS if your steaks are thinner or prefer rare. Longer if you prefer medium. Serve with sour cream horseradish sauce if desired.

Step 7

*If you have a tiny bit of extra pastry, roll with your hands into a long rope, cut in half and use to make a design on top of each before baking and basting.