These are absolutely the Best Flax Muffins in the world! I have to admit I was skeptical about how "great" these muffins really would be. I've tried more than one so-called great recipe, only to discover that, yep you guessed it....it wasn't so great. I'm hooked. I made mine with Carb Solutions brand chocolate shake mix; they were so chocolatey and brownie like, I felt like I was cheating. I also added 1/4 cup walnuts, 1/4 cup pecans and for some reason had to add another 1/4 cup heavy cream + 1/3 cup water because the consistancy of the batter, made according to the original recipe, was too thick to spoon into the muffin cups. Even after adding the additional liquid, the consistany of the raw batter was that of a thick brownie batter. I think next time I make them I will only use a 1/2 C. of shake mix. I guess the liquid ingredients have to be adjusted according to the brand of shake mix used.