homemade marshmallows dipped in chocolate

speed until foamy.
Gradually add remaining 14 cup sugar 1 tablespoon at a time until stiff peaks form tips stand straight.
With the mixer running on high speed gradually add gelatin mixture to egg white mixture beating for 5 to 7 minutes or until thick the consistency of thick pourable cake batter. Quickly and gently spread marshmallow mixture into prepared pan. Coat another piece of plastic wrap with nonstick coating place coated side down over marshmallow mixture in pan. Chill at least 5 hours or until firm.
In a bowl combine powdered sugar and cornstarch sprinkle about 14 of the mixture evenly onto a large cutting board. Remove plastic wrap from top of marshmallows. Loosen sides of marshmallow mixture if necessary and carefully invert onto the cutting board. Remove plastic wrap or paper. Sprinkle top with some of the remaining powdered sugar mixture. Cut marshmallows into 1inch squares. Place squares about onethird at a time in a large resealable plastic bag. Add remaining powdered sugar mixture seal bag and shake to coat all sides of marshmallows with powdered sugar mixture.