INGREDIENTS
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7 cups bread flour, plus more for the work surface and the baking sheets
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2 cups self-rising whole wheat flour
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3 cups lukewarm water
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4 teaspoons active dry yeast
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1 1/2 tablespoons light brown sugar
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2 1/2 teaspoons salt
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2 tablespoons olive oil, plus more for the bowl and plastic wrap
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1 tablespoon molasses
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1 tablespoon baking powder
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1 large egg, beaten
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Poppy seeds, finely chopped onion, or sesame seeds