You can always try my chocolate peanut butter milkshakes. They are loaded with calories as I use whole milk and regular ice cream.

All ingredients are approximate....

Chocolate Peanut Butter Milk Shake

3 - 4 cups of chocolate ice cream
1 - 2 cups of whole milk
2 tablespoons peanut butter
1/4 cup chocolate syrup
1 scoop of Carnation Dry Instant Breakfast Powder
1 scoop of whey protein powder

Blend on high for several minutes until everything is very smooth and creamy. Texture plays a big role in what a person can or cant handle so you want to blend this for a long time. I try to shoot for a consistency of what paint looks like when you pour it out of the gallon container. (Sorry for the weird comparison but thats all I could think of that was very smooth.) If its too thick add more milk, too thin add more ice cream. Drink one of these every single day and also do your 6 cans of boost and you will be ok. Dont forget to drink water too.

Give it a try, it cant hurt