A simple, quick fish stock is used for steaming the fish and for the sauce. Ask your fishmonger for white fish bones; the flavor from darker-fleshed fish might be too strong. It's important to thoroughly rinse fish bones and remove any blood before preparing the stock.
1 1/2 pounds white fish bones
2 medium carrots, peeled and coarsely chopped
1 medium onion, peeled and coarsely chopped
1 garlic clove, minced
4 cups water
1/4 cup crème fraîche
2 1/4 teaspoons fresh lemon juice
1 large egg yolk
1 1/2 tablespoons unsalted butter
1/2 teaspoon fine sea salt, divided
1/4 teaspoon freshly ground black pepper
1 bunch fresh basil leaves (about 1 ounce)
4 (6-ounce) halibut fillets, skinned
Torn fresh basil leaves (optional)
How to Make It
Combine first 4 ingredients in a large Dutch oven; add 4 cups water. Bring to a boil; reduce heat, and simmer 20 minutes. Strain mixture through a sieve into a bowl, reserving stock. Discard solids.
Pour 1/4 cup stock into a small saucepan (set remaining stock aside); bring to a boil over high heat. Boil 2 minutes or until stock is reduced to 2 tablespoons. Reduce heat to low. Combine crème fraîche, juice, and egg yolk in a small bowl, stirring with a whisk. Slowly pour egg mixture into reduced stock, stirring constantly with a whisk. Remove from heat; stir in butter, 1/4 teaspoon salt, and pepper. Set aside.
Pour remaining stock into a large skillet; bring to a simmer over medium-high heat.
Line a vegetable steamer with 1 bunch basil leaves; arrange fillets in a single layer over basil. Place steamer in skillet; cover and steam fillets 15 minutes or until fish flakes easily when tested with a fork. Carefully remove steamer from skillet. Sprinkle fillets with remaining 1/4 teaspoon salt; let stand 5 minutes. Serve with sauce. Garnish with basil leaves, if desired.
MyRecipes is working with Let's Move!, the Partnership for a Healthier America, and USDA's MyPlate to give anyone looking for healthier options access to a trove of recipes that will help them create healthy, tasty plates. For more information about creating a healthy plate, visit www.choosemyplate.gov.