Chilled Sweet Potato Vichyssoise with Skewered Prawn Garnish

Try this delicious recipe from the Electric Kitchen!

• 1/4 cup butter
• 3 tablespoons chopped shallots
• 1 1/2 tablespoons minced garlic
• 1/2 tablespoon minced fresh thyme
• 1/2 teaspoon ground red pepper
• 1/2 tablespoon Madras curry powder
• 5 lb yams or sweet potatoes, pared and chopped
• 1/2 cup Chablis wine
• 1/2 cup dry sherry
• 1/4 cup lemon juice
• 2 quarts chicken stock
• 1 quart heavy cream
• Salt and pepper to taste
• 10 medium-sized prawns, shelled, cleaned, and butterflied
• 10 lemongrass stalks
• 1/4 cup satay sauce (available in Asian grocery stores)