Puff wheat cake

I usually only make this on holidays but I really wanted some today so I gave in and made it.
It's one of those things once you start eating it you just can't stop!

You will need:

10 Cups puffed wheat

5 tbsp cocoa

2 cups brown sugar

1 ¼ cup corn syrup

1 cup butter or margarine

2 tbsp vanilla

1 tsp cornstarch

Directions:

1) Put puff wheat in a large bowl. Set aside.

2) Melt and boil for 3 minutes all ingredients except vanilla and cornstarch.

3) Keep stirring so it doesn’t burn. 

4) Remove from heat add vanilla and cornstarch and  stir well.

5) Pour over puff wheat and mix until all the puffs are coated.

6) Put into a greased 9X13 inch pan and press down with greased fingers.