Lightly spray a 9-by-13-inch glass baking dish with nonstick cooking spray. Sprinkle gelatin over a small bowl filled with 1/2 cup cold water; let stand to soften.
In a heavy bottomed saucepan, mix together sugar, corn syrup, hot water, and salt. Place over medium heat and cook, stirring, until sugar has dissolved. Continue cooking, without stirring, until mixture reaches the soft-ball stage, about 240 degrees on a candy thermometer. Remove from heat and add gelatin mixture; set aside.
In the bowl of an electric mixer fitted with the whisk attachment, beat egg whites on high speed until stiff peaks form. With the mixer running, slowly add sugar mixture. Add vanilla and continue beating for 10 minutes until the mixture looks like marshmallow.
Transfer marshmallow mixture to prepared baking dish and spread evenly. Spray a piece of parchment paper with nonstick cooking spray and cover marshmallow. Let stand overnight.
Remove parchment paper and invert marshmallow onto work surface. Trim 1/4-inch from edges of marshmallow. Cut marshmallows into 1 1/2-inch squares. Pour cornstarch in a bowl; working in batches, gently add marshmallows and toss to coat.
Line a baking sheet with parchment paper; set aside. Working with 1 marshmallow at a time, insert skewer into a marshmallow and dip in fudge until coated on all sides, removing any excess from bottom of marshmallow; place on prepared baking sheet. Repeat process with remaining marshmallows (you will have some marshmallows left over). Let chocolate covered marshmallows stand at room temperature overnight before serving or transferring to an airtight container for up to 3 days.
About Us........ This blog is about the moments that fill our lives. Honestly, there never is a dull one! Mark and I have been married 30 years and have 5 great kids and 3 grand-kids. We've gone from California to New York ... then to Dallas, Chicago and Memphis. We transferred to Jacksonville, Florida and stayed there for 5 years ( a record, I might add). We then followed our daughter, Marci and her husband, Mike to Texas. They live in Katy with their three little ones . (who couldn't possibly be any cuter). Our son, Mark (aka Mack)lives in Florida with his adorable wife, Cheryl. He is a County Commissioner for St. John's County and is deployed for his second term to Iraq with the Florida Army National Guard . Our middle daughter, Kayley is married to a wonderful guy, Scott Miller. Now we have two Scotts in the family. We are thrilled that Scott's company recently transferred them back to Houston. They have relocated to Katy where Scott grew up. We still have(our)Scott and Hope at home and love having my parents just a few miles away. Life is Good!