Ingredients
For the Puffs
1 Tbsp olive oil
1 Tbsp butter
1 sliced onion
2 Tbsp worcestershire sauce
2 thawed pastry puff sheets
salt for seasoning
horseradish aioli
rare roast beef
provolone cheese
black pepper
1 egg + splash of water (egg wash)
For the Au Jus
2 Tbsp butter
3 cloves minced garlic
1 cup beef broth
1 Tbsp worcestershire sauce
1/2 tsp dried parsley
Preparation
For the Puffs
Preheat oven to 375
Add olive oil to skillet on high heat
Add butter
Add onion & season with salt
Turn heat to low to caramelize onions
Add worcestershire sauce
Allow onions to cook until soft & golden brown (up to 30 minutes)
While onions are cooking, roll out 1 pastry puff sheet
Spread pastry puff with horseradish aioli leaving a 1/2 inch border around the edge
Add a layer of rare roast beef
Top with caramelized onions & season with black pepper
Add a layer on top of that with provolone cheese
Brush exposed edge lightly with egg wash
Cover with second pastry puff sheet
Close edges with fingers & crimp with a fork
Cut 3 slits in top to allow for steam and brush entire top with egg wash
Bake on 375 for 30 minutes until golden brown
For the Au Jus
Heat 2 Tbsp butter in same skillet that the onions were cooked
Add garlic, sautee 2 minutes
Add beef broth, simmer & allow to reduce slightly
Add worcestershire & parsley
Remove from heat, serve immediately