Champagne and Orange-Steamed Lobster Tails en Papillote

Ingredients:

• 8 orange slices
• 4 (5-ounce) lobster tails
• 2 tablespoons butter, cut into small pieces
• 1/4 cup chopped fennel fronds
• 3/4 cup dry Champagne or sparkling wine
• 1/4 teaspoon kosher salt

Source