Chocolate Thumbprint Cookies - Snowy the Mouse

Ingredients

• 1/2 cup butter or margarine (1 stick), softened
• 2/3 cup sugar
• 1 egg, separated
• 2 tablespoons milk
• 1 teaspoon vanilla extract
• 1 cup all-purpose flour
• 1/3 cup HERSHEY’S Cocoa
• 14 teaspoon salt
• 1 cup nuts, chopped
• 26 HERSHEY’S KISSES Brand Milk Chocolates or HERSHEY’S HUGS Brand Candies
• 1/2 cup powdered sugar
• 1 tablespoon butter or margarine, softened
• 2 teaspoons milk
• 1/4 teaspoon vanilla extract