Potato-onion dark rye (author's recipe)

Potato-Onion Dark Rye \ Картофельно-луковый Ржаной хлеб (авторский рецепт). Complexity level II (Pre-Pro). Hydration 76% (Level I - Enthusiast, Level II - Pre-Pro, Level III - Pro, Level IV - Bread Artist). Ingredients: • 100% hydration active dark rye flour leaven – 100g • medium rye flour – 200 g • bread wheat flour (13% protein: mixture of 15g of 13.5% flour and 35g with 12.7%) – 50 g • water – 100 g • mashed potatoes – 85g (made from 15g potato flakes + 70g hot water) • extra virgin olive oil - 15g • dark full flavor molasses – 10 g • fine sea salt – 9g + 15-20g water • dry minced onion – 6 g • coarsely ground caraway seeds – 3 g Supplemental Ingredients: • olive oil spray