Aquire a Marshmallow, stick, and fire.

Step 1: Step 1

Put Marshmallow on the stick/skewer. Put it about half way through the marshamallow

Step 2: Step 2

Put the skewered marshmallow into the bottom of a hot fire. Make sure it is not touching the coals/hot wood, or else it could catch on fire.

Wait until the top has gotten a bit golden brown. Depending on how hot the fire is, this should take a few seconds

Step 3: Step 3

Put the marshmallow over the coals that are still hot, but NOT IN the fire. Slowly spin until the marshmallow is golden brown in the sides and bottom edges.

OR

Let roast until crusty around sides