Rich Doughs

For a while, I've wanted to experiment with a "Peanut Butter and Jelly Bread." Given how well the Brioche Hamburger Buns have turned out, with all their buttery goodness, I'm considering using Jacob's Brioche loaf recipe as a starting point. 

I have googled around for existing "Peanut Butter and Jelly Bread" recipes, but most of them seem just to swirl the peanut butter and jelly into the dough, producing something that would be difficult to slice, toast and handle.