yes the 15/15 rule 15 carbs (simple sugar) and wait 15 minutes. then back up with a few carbs (i do 8g with a protein) so for me this will keep my blood sugar even an stable and i will not end up with a overcorrection.
Of course you could just eat a meal as well.
I will have to look for the sweet potato chips i like trying new foods. I just bought some cauliflower crackers, has a bit of a funky taste to them.