Buttermilk Bread with Hazelnuts and Wattleseeds

I submit Buttermilk Bread with Hazelnuts and Wattleseeds to Yeastspotting.

Saturday 3:45 PM
I combined sourdough starter ingredients:
2 tablespoons rye sourdough
520 g water
520 g stone ground rye flour

Sunday 8:10 AM
 In a large mixing I combined:
950 g sourdough starter
384 g water
500 g buttermilk (1 1/2 % milk fat)
8 g wattleseed (roasted & ground)
1000 g whole wheat flour
Then I soaked:
200 g raw hazelnuts in hot water.
At 8:50 AM I added:
20 g salt
drained hazelnuts
to the dough.
I mixed in the salt and hazelnuts, covered the dough and refrigerated it.
At 3:15 PM I removed the dough, preshaped the loaf  (the dough was not easy to handle) and I put it into a proofing basket (I had to repeat shaping in the proofing basket). Then I refrigerated it.
I turned on my oven at 5.15 PM. When the oven was hot (500F)I loaded the loaf.
I baked :
for 15 minutes at 490F
for 15 minutes at 470F
for 15 minutes at 450F
for 15 minutes at 400F.

wattleseed tastes similar to cocoa and combines very well with milk, buttermilk and fresh cheese like  goat's milk cheese-chevre.