Classic Beef Wellington

INGREDIENTS

3 lb

Beef tenderloin, center-cut

2/3 cup

Chicken liver pate, homemade or store-bought

1 tbsp

Flat-leaf parsley, fresh

1 1/2 cups

Portobello mushrooms

1/4 cup

Shallots

Egg, large

6 cups

Beef stock, homemade or store-bought

2 1/4 oz

All-purpose flour, unbleached

1/8 tsp

Kosher salt

Kosher salt and freshly ground black pepper

1 1/3 tbsp

Vegetable or sunflower oil

1 lb

Puff pastry

3 oz

Butter, unsalted

1 tsp

Butter, unsalted

3/4 cup

Whole milk

1 cup

Madeira