Place in the oven and bake the crust for 15-20 minutes, until lightly golden brown. After spacing your doughnuts, gather up the dough remnants and roll out the dough again, repeating until it is used up. wikiHow is a “wiki,” similar to Wikipedia, which means that many of our articles are co-written by multiple authors. She rolled them back out and spread some fresh butter and then dusted them with dark brown sugar. You can use chocolate sauce, caramel, nuts, M&Ms candy etc. On leftover levain from Ken Forkish's recipe Hi, I'd like to know if anybody making the wonderful recipes from K Forkish's book Water, Flour,Salt, Yeast has saved the leftovers of the levain, after taking what is needed mixing into the dough, to use it the next day or even 2 or 3 days later. secondly, the dough â¦ These will need to bake for about 15 minutes. They are bite-sized pieces of delicious. While any variety of rice will work, I prefer white or brown. These will bake 8-9 minutes in a 425 degree oven.