Pack your pockets! I do a similar amount of carbs shared between food and drink. I’m not a big drinker or sweater so it’s mostly food
Cliff bars are 40g carbs each (I buy them in bulk when they are on sale for half price). I can fit loads in my back pockets.
I have made homemade versions in the past
Snickers bars are similar in carb content and relatively inepexensive
Bags of haribo are nice too 
For higher intensity rides/races I carry a gel flask (or 2) in my back pockets so there is no concern with accidentally littering and/or getting sticky goo everywhere trying to open individual packs of gels