Cool Chocolate Dessert

1 liter Milk
5 table spoons cocoa powder
5 table spoons cornstarch
1 can condensade milk
1 can milk cream

First you put everything except the milk cream in a saucepan, and then heat the oven. Wait until it boil. Then you put it,with the milk cream, in the liquidizer blander, mix it. Put it into a bowl and into the refrigerator for three hours.