The recipe I found online was said to be adapted from "Artisan Bread in 5 Minutes a Day" as well as "Cook's Illustrated". I, in turn, adapted it myself. My apologies to the person who I got this from, as I cannot find the link to her page...but when I do I will update this post.
I adapted this recipe to use my "caught yeast sourdough starter". You can do the same, or just use yeast as called for. I'll share both methods in this post.
NOTE: Why do I prefer sourdough? Go HERE to find out.
Brioche is known to be FULL of butter, I changed this up a bit, by substituting half the butter with coconut oil. A healthier option. I also switched out some of the flour for White Whole Wheat flour, but you can skip that if you'd prefer an all white bread.