in small metal measuring cup

1/2 tsp dry yeast (2 g)
50 ml water (37 Celsius)
1 tsp brown sugar
mix with handmixer (just one attachment)

let sit for 5 minutes

pour into kitchenaid mixer

add

200g starter
200g water
50 g Rye flour (farm)
400 g spelt flour (sprouted)
2 tsp salt
1 tsp Brotgewürz

with bread hook, 10 minutes, speed 2

put a bit of rice flour on IKEA cutting board
work dough into a ball with some stretch and fold

let rise in covered bowl for 3 hours (on WIFI router)

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stretch and fold in the glass bowl
end with a ball

cut parchmet paper for black cast iron

put bread onto parchment and lift into the cold pot
spray with some water
cover and put into cold oven
heat to 450 F

set timer to 45 minutes

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after 45 minutes

open lid

bake for another 10 minutes