What does it mean when a recipe calls for 7 parts water??? How much is that?

Answer 1

Whatever you measure out for your base (Milk, Flour, Butter, Corn Syrup, Etc), you also measure out for whatever else.


Like...

1 cup milk to 7 cups butter.
1 cup flour to 7 cups water
1 cup oil to 7 cups flour.

Answer 2

It's a ratio. For example, if it calls for 1 part milk to 7 parts water, that could be 1 tsp milk in 7 tsp water, 1 cup milk in 7 cups water, etc. It depends on how much you want to make.