https://www.chameleonforums.com/i-think-i-invented-dubia-crack-95938/
Then add your base of carbs from bran/oats/barley/alfalfa etc. I think my last batch i just used some of bobs hot 5 grain cereal with little to no sugar added.
For calcuim the top 2 are sticky tongue farms mineral-all and Rep-Cal (either d3 or no d3). Both are excellent for powdering, dont have extra vitamins, and taste good to the reptiles and feeders.