My CDC had a good idea re: bars she said cut a peanut crunch in half lenthways and do the same to a malt toffee then join them up. Its like a CD version of snickers (or as I remember marathon)!
I've got a big beasty blokes weightlifting type protein shaker. It's got a metal whisk type ball in & it really does the job!! No lumps. Plus the shaking helps with the old bingo wings