I have made my own boilies for some time now and I do it exactly as you described 1 egg mixes fresh before a session. The bait is at its absolute best made literally hours before its cast out.
I have never used any rolling devices I just hand roll my own dumbbell shaped boilies to the desired size. Always worth keeping a smidge of the paste leftover for a wrap or two.
You won’t go far wrong with a JB basemix.
He does some good ones with barbel in mind like the big rivers, taste, bio shelfish and if you like a spiced mix the Bombay mix has proved it’s worth with barbel on many occasions.
Here’s a few of mine straight out the pan. The most important thing is not to over cook them. The centre should still be soft and paste like with a hard crust.
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