Homemade Potato Leavening Bread
From: Paulette, Saint-Leonard, Quebec, Canada
Comments: Leftover potato leavening will keep for up to 3 weeks, refrigerated; it must be at room temperature before using.
Servings: 2 breads
4 cups [1 L] potato leavening
IngredientsPreparation
Potato Leavening
  • 6 large potatoes
  • 1/2 cup [100 g] sugar
  • 2 tablespoons [30 mL] salt
  • 2 packs active dry yeast
  • 1 cup [250 mL] lukewarm water
Bread
  • 1/2 cup [125 mL] potato leavening
  • 2 cups [500 mL] lukewarm water
  • 1 1/2 teaspoons [7.5 g] sugar
  • 1 1/2 teaspoons [7.5 mL] salt
  • 1 1/2 teaspoons [7.5 g] softened butter
  • 6 cups [840 g] all-purpose flour [approximately]
Potato Leavening
  • Peel and grate potatoes.
  • Transfer potatoes into a bowl.
  • Sprinkle with sugar and salt.
  • Mix well.
  • Into a clean bowl, delicately sprinkle dry yeast over lukewarm water.
  • Leave to rest for 10 minutes, then mix.
  • Mix into potato mixture.
  • Cover with a clean cloth.
  • Leave to rest, at room temperature, for 24 hours.
  • Measure needed potato leavening for the recipe.
Bread
  • Rinse a large bowl under lukewarm water.
  • Mix together potato leavening, lukewarm water, sugar, salt and softened butter.
  • Slowly add flour, mixing at first with a spoon, then with your hands.
  • Transfer dough onto a floured surface; knead 8 to 10 times or until smooth, shiny and light.
  • Transfer dough into a greased bowl.
  • Grease top of dough.
  • Cover with plastic wrap.
  • Transfer covered dough into a cold, turn-off oven, with only the pilot light on.
  • Leave to rise until double in bulk, for approximately 2 hours.
  • Punch dough with your fist; divide dough into 2 equal parts.
  • Shape each part into a loaf; transfer each loaf into 2 greased bread loaf pans.
  • Grease top of breads.
  • Cover with a clean cloth.
  • Leave to rise in the oven, still with the pilot light on, for approximately 1 hour.
  • Remove breads from oven.
  • Preheat oven to 400°F [200°C].
  • Bake breads into preheated oven for 10 minutes; lower oven temperature to 375°F [190°C] and bake until done.
  • Breads must be firm and sound hollowed when tapped on the bottom.
  • Unmold and cool, onto wire racks.