Highest Calorie/Cheapest Food

I use the whipping cream tactic in my breakfast shake, which is as follows:

yogurt and/or fruit and/or juice
protein powder
wipping cream
olive oil

I usually make it to have 1000 kcals but you can make it however big you want. Cream is about 4.50 canadian for one liter.

You dont care about your health and you are looking for high calories hmmmm Super Size Big MacMeal comes to mind. In Canadian sizes (I think US supersize is bigger) you are looking at around 1700cals. Go on a Tues its cheap!