Asian Burger with Peanut Sauce - Sutter Home Family Vineyards

Ingredients

• 1 1/4 pounds ground beef
• 6 tablespoons creamy peanut butter
• 3 tablespoons sour cream
• 2 tablespoons fresh lime juice
• 4 teaspoons soy sauce
• 2 tablespoons fresh coriander, chopped
• 2 teaspoons fresh ginger, grated
• 1/2 teaspoon red pepper flakes
• 4 hamburger buns
• 4 lettuce leaves