After I ride my bike...
I have Big Train low carb smoothies [chocolate,mocha or vanilla]...I mix 1/2 c. of 1/2-n-1/2...1/2 cup water, 16 cubes of ice...and hit puree on my blender...recently I have been adding 3 egg whites...and sometimes a *psst* of almond extract.
It is a real treat after 4 miles on my mean lean biking machine.