The first step is to prepare the materials. You don't have to use vegetable biscuits, you can use soda crackers, or you can have fun cookies.
2. Marshmallow should be cut into small pieces and melt faster.
3. Put the unsalted butter into the pot and let the butter melt. 4. Add the marshmallow and stir until the melting heat is not allowed. 5. After the cotton candy is dissolved, turn off the milk immediately and turn it to the non-granular shape.
6. Take a piece of vegetable biscuit and heat it. Put the filling on top and cover the other biscuit.
If the fire is small, it will be easy to burn off, or you can use the water to heat it. If you don't like too sweet, you can reduce the amount of milk powder.