Day 1
Combine in mixer
300 grams white flour
200 grams wheat flour
Add while mixer on slowest speed
410 grams water, 92℉
(25 grams powdered milk)
Mix until just combined
Add to mixer
3 grams active dry yeast
11 grams fine sea salt
Cover and let sit for 20 minutes
Mix until combined, about one minute
Transfer dough to dough bucket
Make first fold after 15 minutes
Make two more folds 45 minutes apart
Let dough proof for 1 hour after last fold
Turn dough out onto floured counter
Shape for bread pan
Let rest for 15 minutes under damp cloth
Shape and press down into bread pan
Proof in refrigerator overnight
Day 2
Turn oven on 450℉ for 45+ minutes
Decrease temperature to 425℉
Put bread pan in oven for 50 minutes
Rotate pan after 30 minutes
Remove bread from pan
Place on wire rack
Inner temperature should be 200℉
Let cool at least one hour before cutting