Sourdough Pullman Loaf (Pain de Mie Sandwich Bread)
Author: Ashley Adamant
Ingredients
100g½ cup active starter
350g1½ cups warm water, around 100°F (38°C)
425g3½ cups strong white bread flour
25g¼ cup dried potato flakes or milk powder
7g1 tsp salt, or to taste
Instructions
In a medium-sized mixing bowl, roughly mix together all the ingredients until you have a shaggy, rough dough. The dough will be sticky. Cover the bowl with a clean shower cap or your choice of cover, and leave the bowl in your chosen warm spot.
After half an hour, perform the first set of pulls and folds until the dough feels less sticky and comes together into a soft ball. This will be a warm, soft, stretchy dough. Cover the bowl again and place it back in the warmth.
After half an hour, perform the next set of pulls and folds; the dough should be nice and stretchy and bouncy, and it will come together into a smooth, soft ball. Place the covered bowl back in the warmth for another 30 minutes.
Perform the last set of pulls and folds; the dough should come together into a nice, smooth, bouncy ball. Place the covered bowl back in the warmth for the next 3 hours, or until the dough has doubled in size.
Once the dough is double its original size—it may be soft from the warm proofing, but it should not be floppy—gently but firmly perform a set of pulls and folds on the dough to pull it into a ball. Place the dough, smooth side down, into your prepared pan. Cover the pan with the same cover and place it back in your warm place until the dough grows up to an inch (2.5 cm) below the top edges of the pan. This will take 1½ to 2 hours. This step can also be done in the fridge for a longer, slower second proof—up to 24 hours—and can then be baked directly from the fridge.
When you are ready to bake, decide whether you would like to bake in a preheated oven or from a cold start. If preheating, set the oven to 350°F (180°C) convection or 400°F (200°C) conventional.
If you preheated the oven, put the lid on the pan and bake it for 45 minutes. If you are using a cold start, place the covered pan of dough in the oven, set the temperature as above and set a timer for 50 minutes.
Remove the loaf from the oven and the pan, tap the base of the loaf and if it sounds hollow, the loaf is baked. If not, return it to the oven, out of the pan, directly onto the rack to bake it for a further 5 to 10 minutes. Remove it from the oven and allow it to cool on a wire rack for at least an hour before slicing.