INGREDIENTS
1 1/2
lbs 2 bunches asparagus
1
fresh tarragon leaves plus 2 sprigs, fresh
1/4 cup
Basil, fresh leaves
1
Garlic clove
2
Egg yolks, large
2 tbsp
Lemon juice, fresh
1 tbsp
Mustard powder
2 tbsp
Kosher salt plus more
1
Sea salt, Flaky
1/4 cup
Olive oil plus more, extra-virgin
6
arctic char steaks, each about 1 1/4-inch thick