This is version 5 of my SD multi-grain challah called Brachflachen Mehrere Vollkombrot [1] but wanted to make a special one this year - that non Jews would like - by Easter.  I added; whey water, a Yeast Water levain on top of the SD one, sunflower seeds,  white diastatic rye malt, malted barley, lentils, vital wheat gluten and various sprouted grains while cutting back on; the egg,  molasses and honey.  The crust came out lighter than usual but was still very dark and thick but soft after it cooled.  The crumb was more moist, more open, even with 40% whole grain and more interesting with the the sunflower seeds and the sprouted berries.  The taste is far superior and everything I would want in this bread.  It its a lot of work but you will be rewarded with a fine Holliday bread.  The method and formula follows the pix's.  I had an identical boule retarding in the fridge overnight, have now baked it off and those pictures will follow at the very end. I also added the 20 g of Pink Himalayan sea salt to the formula which was missing.  I do like using both starters.  SD for taste and YW is known for its spring and mpoist crumb by my experience.  These 40% whole grain breads with sprouts and seeds need all the help they can get and the YW seemed to help in spring and moistness.

Method

2 days before bake, take the berries and soak them in water for 5 hours.  Place a sheet of  wet paper towel on a tray and spread the seed out on top of it.  Cover with two more sheets of wet paper towel.  I just get the towels wet, squeeze out the water and unravel them to flat. Cover the whole shebang with plastic wrap and let sit until needed’

1 day before baking make the 2 starters.  There is 4 hours between each of the builds.  At the 12 hour mark, put both levains in fridge overnight for retardation of 8 hours

In the morning, take out the levains and put them on the counter for one hour as you autolyse the dough flours with the whey water and water (I used an equal part mix as usual) in your mixer bowl with the paddle on KA 1 then cover with plastic.

After an hour add the levains and mix again until they are incorporated and cover.  Let autolyse for one more hour.

Add the salt and all the mix-ins except the seeds, switch to dough hook and knead on KA 2 for 8 minutes.  Add in the seeds and the sprouts and mix until combined.  Transfer dough to a well oiled and plastic covered bowl.  Let rest 15 minutes.

 Do 10 S&F’s on a floured work surface, form into a ball and put back into a plastic covered oiled bowl.  Do 3 more S & F’s at 15 minute marks only do 4, 3 and 2 S&F’s.  Let dough develop in plastic covered oiled bowl for 1 hour.

Divide dough in half and pre-shape into boules.  Do final shaping 10 minutes later making sure the skin is stretched taut, dust top with 50/50 mix of AP and Rice flour and place top down in basket lined with a well floured towel, using the same dusting flour combination.  Place baskets in a tall kitchen trash can liner for 1 hour.  Place in fridge overnight to retard or, when dough has risen 70%, it is ready to bake when it passes the poke test.

Pre-heat the oven at 500 F on regular bake for 45 minutes with your steaming method and stone in place.  Invert baskets onto parchment paper on a peel, do a T-Rex or, my favorite, 3 Toed Chicken Slash or a beauty of your own and slide into oven on the parchment paper.  Turn down temperature to 450 F and steam for 15 minutes.  Remove steaming apparatus and parchment, turn oven to 425 F convection and bake for another 25 minutes or so turning the boule every 8 minutes 1/3rd of a turn.  When the bread has reached 205 F inside, turn off oven, keep door ajar and let boule crisp on the stone for another 12 minutes.  Then remove to a cooling rack until cool.

If retarding, take the bread out of fridge in the morning and leave in the plastic bag.   Immediately start your pre-heat of the oven and bake as above.  My retarded boule will be going in the oven shortly.  It rose beautifully in the fridge.

 This bread also bakes very well Tartine Method in a cold or hot Dutch Oven.