Here's my recipe for hot fudge sauce. My dh loves it!!
Hot Fudge Sauce
3 T. Cocoa
1 c. Sugar
1 (5 ounce) can Evaporated Milk
1 T. Butter
1 t. Vanilla
Combine cocoa and sugar in sauce pan and place over medium heat. Add milk, bring to a boil and stir constantly. Remove from heat and add butter and vanilla. Stir until butter melts.
Yield: 1 cup
I tend to cook mine a little while so the sugar will dissolve well. If it cooks too long, it will come out thick.