One of the most important things that I’ve learned on keto and carnivore is that how I get my fat affects absolutely everything. Rendered fats like butter, oils, tallow and lard are much less satiating than solid meat fat that’s still bound up to it protein cellular structure and still contains all of the nutrition therein. Also, I simply cannot eat too much rendered fat without feeling really nauseated and sick. I think this is why so many people have problems sorting out a truly ketogenic carnivore approach. Solid fat doesn’t have this effect and I can easily consume 2:1 fat:protein grams and feel better when I do then I ever did on standard keto with plants.
But how to cook pure beef fat so as not to render it? I tried frying it and roasting it and it all resulted in too much rendering, and an unpalatable chewiness and flavor. It wasn’t at all similar to the texture or taste of the mest fat that was attached to my steaks etc, which is what I was trying for. I still ate it because I knew the high fat was helping my health issues but my husband eschewed it in favour of just the meat. Honestly, it was so lousy I was preferring to eat the fat raw.
But I’d taken to using a really low temperature/long duration style of cooking my meats so as to keep all of the fat from rendering out of the meat itself. I found that when I cooked at 150 F no fats rendered out of the meat. So I thought this might be worth a try with the fat itself.
Anyhow, it works amazingly. I just cook huge hunks of fat for 1 1/2 to 2 hours at 150F and it’s so soft and delicious. Now my husband is happily carving off huge hunks and his protein intake has pretty much halved.
I don’t use suet though so I can’t comment specifically on how that would work. My understanding is that it has a less beefy taste which is why it used to be prized for baking, but it may have slightly different cooking properties. I just buy big slabs of fat that the butchers carve off the muscle meat.
With respect to hamburger this required a bit of thought also since a lot of fat renders when you fry a burger. Here is the technique that I use now and adore.
First, I buy the fattiest grind that I can. Then I add to that even more finely chopped up beef fat. Then I form the patties and place them on a rack over a pan in the oven set to 150 F. Again, let it cook for a couple of hours. Then a very, very quick sear in a hot pan at the end. This gives the correct flavor without any of the rendered fats.
*The rack is important to all this low temp cooking. Sitting directly on the hot pan will cause significant rendering itself.