INGREDIENTS
1 1/3 kg
Middle-cut fillet of beef
100 g
Button mushrooms
350 g
Mushrooms, mixed
2 tbsp
Tarragon
1
Egg
1
Egg yolk
5 tsp
Dijon mustard
1
Plain flour
1 tbsp
Plain flour
1
Salt and freshly ground black pepper
1 pinch
Sugar
1 tbsp
Oil
2
large knob Butter
400 milliliters
Creme fraiche, full-fat
50 g
Parmesan
1½ x 375g packets all-butter puff pastry