@nbkod7b I am impressed with the nutrition you are getting through the G tube using a blender. My dad had a G tube, and used the commercial preparations. My first thought for extra calories was ice cream, but you are already doing that. In trying to gain weight, fats have so much more calories per gram of weight than other foods and would help you gain weight. As for not clogging the G tube and lines, have you tried olive oil to add calories?

This link gives some health benefits of olive oil. It can easily be mixed into the other foods you are putting through the blender.
https://www.usnews.com/news/health-news/articles/2022-01-11/more-olive-oil-may-bring-longer-life-study
Have you discussed with your doctor what is right for you? I am sure not clogging the G tube or any lines is important. One of the issues that comes up with liquid feeding is that you don't have bulk to keep the stomach expanded and when it shrinks, it's hard to get enough nutrition because it has to go in so much slower. My dad had a bag like an IV bag up on a pole and it dripped in slowly toward the end of his life. Also make sure you stay upright, so stomach contents are not coughed up or aspirated. Your doctor or nurse probably reviewed that with you I would expect.