I begin my making my own sweetened condensed milk. Here is the recipe from Your Lighter Side.
I then add the sweetened condensed milk to a mason jar with the following:
1 cups whole organic milk (raw if I have it)
2 tsp organic vanilla
I make a double batch every time which would be:
2 cups sweetened condensed milk
2 cups whole milk
4 tsp organic vanilla
Shake and enjoy with your next cup of java!