NUTELLA® THUMBPRINT COOKIES

Steps:

• Heat oven to 375°F. In medium bowl, stir cookie mix, flour, melted butter and egg with spoon until soft dough forms.
• Shape into 50 (3/4-inch) balls. In small bowl, beat egg whites lightly with fork. Place nuts in another small bowl. Dip each ball into egg white, then roll in nuts. On ungreased cookie sheets, place balls 1 inch apart.
• Bake 8 to 10 minutes or until set. Cool 5 minutes on cookie sheets. Using end of wooden spoon, make indentation in center of each cookie. Remove from cookie sheets to cooling rack. Cool completely, about 20 minutes.
• When ready to serve, spoon hazelnut chocolate spread into small resealable food-storage plastic bag; seal bag. Cut off small corner of bag; insert cut corner of bag into indentation in each cookie. Squeeze bag to fill opening, about 1/2 teaspoon per cookie. Sprinkle with nonpareils.
• Store covered in airtight container at room temperature in single layer.