Just don’t fidget while you’re counting your scoops. “Wait was that really 3 scoops or did I just get bored and start clicking for fun? Nah surely I couldn’t have been THAT ADHD. No. I’d remember if I did that right? Maybe I’d better try to remember how many scoops to be sure, now, how many scoops was that?”
Get yourself a tally counter (click counter, hand counter, whatever). As an added bonus, it’s also a great fidget toy!
Just don’t fidget while you’re counting your scoops. “Wait was that really 3 scoops or did I just get bored and start clicking for fun? Nah surely I couldn’t have been THAT ADHD. No. I’d remember if I did that right? Maybe I’d better try to remember how many scoops to be sure, now, how many scoops was that?”