Soak the beans in plenty of cold water overnight. Drain and add the beans to a large pot. Cover with 2 inches of water, and add the bay leaves, peppercorns, and 4 tablespoons of the olive oil. Bring to a boil, then turn the heat to low, cover, and gently simmer until tender. This might take anywhere from 30-50+ minutes, depending on your beans. Mine took 40 minutes. You want the beans tender, but not mushy. Drain and reserve the liquid, you'll be adding some to the puttanesca sauce. Remove and discard the bay leaves.
Meanwhile put the remaining 4 tablespoons of olive oil in a skillet and sauté the onions and garlic for a few minutes to soften the onions. (If you're using anchovies, add them now as well.) Add the splash of dry sherry to the pan, if using, and stir to allow it to evaporate.
Add the canned tomatoes, olives, capers, red pepper flakes, and beans to the pan. Season with black pepper and add a couple of ladles of bean cooking water. Bring up to a simmer and simmer for a few minutes to let the flavor mingle.
Toast your bread and serve the beans in shallow bowls with slices of bread on the side. Garnish with shaved Parmesan if you like.
Nutritional information is provided as a courtesy and is an estimate only. This information comes from online calculators. Although The View from Great Island attempts to provide accurate nutritional information, these figures are only estimates.
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