Steamed King Crab With Gewürztraminer Sauce

• 1 cup Round Barn Gewürztraminer wine
• 4 tablespoons unsalted butter
• 2 1/2 pounds frozen King crab legs, cut crosswise between the joints
• 2 tablespoons minced chives
• 1 tablespoon minced lemon balm or 1/4 teaspoon finely grated lemon zest
• 1 tablespoon minced spearmint

1. In a saucepan, boil the Gewürztraminer over moderately high heat until reduced by half, about 10 minutes. Whisk in the butter and remove from the heat.
2. Using kitchen shears, cut along the length of the crab leg shells. Arrange the legs in a single layer in a large steamer basket or bamboo steamer; steam until heated through, about 4 minutes. Transfer the crab legs to a platter.
3. Gently rewarm the sauce over low heat and stir in the chives, lemon balm and spearmint. Pour the sauce into warmed dipping bowls and serve at once with the crab.