This is not the instant kind, but is pretty fast, you will need to cook this briefly. This in the packaged form I have never seen where I live, so here is a shortcut.
1-1 1/3cupsbaking cocoa, 1 for light, 1 1/3 for rich flavor
1/2teaspoonsalt
To Make Pudding
2cupsmilk
1cuppudding mix
1tablespoonbutter
1/2teaspoonvanilla extract
Instructions
For the Mix
Mix all the ingredients and store in an airtight container.
To Make Pudding
Combine 1 cup of dry mix with 2 cups milk in a heavy bottomed saucepan. Bring to a boil, stirring constantly, stir in the butter and vanilla, then divide into bowls, allow to cool then refrigerate.