Here's what you'll need
Cod fillets, clarified butter, tarragon, chives, a red or green chili, garlic, Kosher salt, and black pepper
Flavor the butter
To the clarified butter, add tarragon, garlic, and a thinly sliced chili.
Poach the cod
Add cod fillets to the warm butter, then cook until cooked through, about 6-10 minutes.
Make the tarragon aioli
While the cod is cooking, make a tarragon aioli with egg, garlic, lemon juice, and tarragon in a food processor.
Serve over creamy mashed potatoes or with roasted veggies for an elegant weeknight din!