HWC at 411 calories per half cup can allow you to put your fat% as high as you'd like. Its what I use. Trader Joes has an organic heavy cream that has but one ingredient - Cream. Yummy stuff.

I don't go out of my way to eat particularly fatty meals, and my daily intake is 55% and up.

Bacon and eggs with veggies for breakfast. Black coffee (If I took cream I'm sure it would be even higher).

Salad with leftover meats, a whole avocado, and nuts with dressing made from 2tbsp leftover bacon fat (from breakfast) and apple cider vinegar.

Steak and veggies in butter for dinner.

I average about 2300 cal/day or thereabouts.

Very easy....

First: Just choosing the fatty bone in cuts of meat gets you most of the way there (80/20 ground beef is 65% fat by calorie).

Next: Cook with good fats. Butter, Olive oil, coconut oil...cook your veggies and whatever else in it.

Final step: Bask in the glory of eating good tasting food and a macro ration of better than 50% of diet from healthy fats!

Are there are fats that you enjoy? I love butter and now that I have found it, coconut butter and I find it easy to OD on both. That said, I know shakes are not optimal, but maybe you could use one shake a day to get your fat in it you can't do it any other way. I'm thinking a shake with any kind of butter, nut, coconut, avocado or oil added.

Good luck, love to know how you feel on that diet.

are you a forest firefighter? what level of strain are you under that you need that much fat calories? are you going to go low carb too? and do you understand what that does to your thyroid? are you in a major bulking phase and need to grow tons of new muscle tissue?