That, I don't know, but sometimes it seems the whole food world is salt. A half-cup serving of commercial instant chocolate pudding mix contains 310 mg of sodium.
I have a non-dairy "chocolate dessert" recipe from Food That Really Schmecks. We've made it many times but never particularly considered the sodium content.
The ingredients, as written, are 1 heaping tbsp. cocoa, 3 heaping tbsp. flour (this is an old recipe!), 1/2 tsp. salt, 1 cup sugar, 2 cups water, 1 tsp. vanilla, and some butter to stir in at the end (I figured 2 tbsp.).
This recipe doesn't make very large servings (I'd say it serves 3-4), but counting it as a 4-serving dessert, one serving as written would have 295.9 mg sodium. About the same as the commercial milk-based pudding, although at least it's free of all the other additives.
If you use 1/4 tsp. salt, it brings it down to 149.1 mg.
If you cut it to 1/8 tsp. salt, it brings it down to 75.609 mg.
And if you leave the salt out altogether, you end up with 2.175 mg per serving.
Obviously, almost all the sodium in this recipe comes directly from the salt. The question is just how far back to cut it! I think I might try it with just a pinch of salt.
Oh, you wanted the recipe? It's a little inexact, but goes better with experience.
In a medium saucepan, combine the sugar, flour and cocoa, and salt if using. Mix with a little cold water to form a paste; then add in about 2 cups boiling water (less if you had to use more cold water). Cook over medium heat for about 10 minutes or until thick, stirring constantly or at least frequently. Remove from heat and stir in vanilla and butter or margarine. Chill before serving.