Cooked Chocolate Icing - cooking recipe

Ingredients

4 1/2 c. sugar
1 large can Carnation milk
2 sticks butter
1/4 c. sweet milk
1/2 to 3/4 c. cocoa
2 Tbsp. or more Karo syrup
1 Tbsp. vanilla

Preparation

Mix sugar and cocoa, then add milk to mix.
Add other ingredients except vanilla.
Boil 2 to 3 minutes.
Beat with electric mixer until thick.
Add vanilla.