Here is the recipe for the homemade marshmallows
Prepare a 9X9 baking pan by greasing it with butter and sifting powdered sugar over it to coat the bottom and sides.
Put 3 envelopes of Knox gelatin and one-half cup cold water into the bowl of stand mixer to allow the gelatin to bloom for 10 minutes (or any bowl if you are going to mix with a hand mixer).
While gelatin is blooming, measure out 2 cups sugar (I used cane sugar), two-third cup light corn syrup and one quarter cup water. Boil this mixture to 250F (hard-ball stage). Remove from heat. Be very careful.
Run mixer at low speed while pouring (very slowly) the hot sugar syrup in gelatin. Once the syrup is mixed in, turn up the speed slowly and add one-quarter tsp. salt. After a while you should be able to mix at high-speed. Mixture will start to fluff up. Once the volume of the marshmallow stops increasing add 1 tablespoon vanilla. The entire mixing process takes about 8 minutes.
Pour the fluffy mixture into the prepared pan.
Let the marshmallow cool and set uncovered overnight. Invert pan over a cutting board covered lightly with powdered sugar. You can easily release the marshmallow by pulling from a corner and working it loose from the pan.
Cut with a pizza wheel. (If you find the sides too sticky you can toss the squares in a bowl of powered sugar, I did'nt have to do this).
Optional - drizzle with melted chocolate; topped with nuts.
Delicious ! Perfect for making S'mores at the campsite.