INGREDIENTS
2 1/2 lb
Beef tenderloin, center-cut
2 lb
Cremini mushrooms
5 cloves
Garlic
1/2 cup
Yellow onion
2
Eggs
1/4 cup
English or dijon mustard
1 1/2 cups
All-purpose flour
1/2 tsp
Salt
1
Salt and pepper
2 tbsp
Canola or vegetable oil
1/2 cup
Ice water
15 tbsp
Butter, unsalted
1 tbsp
Butter