If you don't want to use protein powder, use protein - rich seeds like chia or hemp (add a heaped tablespoon), and / or throw in a few spoonfuls of protein - rich cereal flakes like buckwheat or quinoa flakes. (nourisheveryday.com)
I also grind those quinoa cereal flakes if you can find them (feastingonfruit.com)
My sister stuck to her go - to chocolate topped with cereal flakes, while I went all fancy - schmancy and got the Pistachio Turkish Delight, which was a rose ice cream topped with pistachio grains and a cube jelly. (willstudyforfood.com)