My recipe is simple, a trip to Whole Foods and I buy as large of a variety of fresh seafood as I can. I also buy the large bulk bag of PE Mysis and Cyclop-eaze and a variety of frozen foods. I put about a fourth of the ingredients in the blender and enough ro/di water to help it blend. Blend it until it is very fine pureed. The rest of the mix is finely chopped into fish size bites, I sometimes use a coffee grinder or small food chopper to help with this. Once everything is ready I mix it in a large bowl, and this includes the frozen foods which are usually thawed by now and the rest of the PE.
Once a homogenous mix is achieved it gets put into large baggies and flattened out into sheets and into the freezer. I feed usually every other day, an equivalent amount to 4-6 frozen cubes. I only have 5 small fish and I thaw what I will be feeding with a little tank water. Every hour or so I spoon a little of the mix into the tank until it is gone. I should take a pic of the SPS reactions to the food, excellent extension and filaments. The key with the puree is to get it as finely pureed as you can.
This mix shuts my skimmer down for hours and turns the tank a little cloudy but I don't mind, it dissipates quickly enough. The recipe has evolved over the years and I will only use the fresh seafood from Whole Foods as they add no preservatives of any kind. A batch usually lasts more than a year and I have been doing it this way since around 2005. There may be better foods out there now, but I have not tried them.