Put the beans in a large bowl and cover with about 3 times their volume of cold water. Soak overnight in a cool place.
Drain the beans and transfer to a large pot or Dutch oven. Add 10 cups water and the ham. Bring to a simmer over medium heat, then reduce the heat to low and cook until the beans are tender, about 1 hour, 30 minutes. Transfer the ham to a plate to cool slightly, then remove the bone, if used, and dice the meat. Return the meat to the pot.
Meanwhile, cover the potato with water in a saucepan and season with salt. Bring to a boil over medium-high heat, then reduce the heat and simmer until the potato is fork-tender, 20 to 25 minutes. Drain the potato; transfer to a bowl with the milk and mash with a potato masher or fork until smooth. Add the mashed potato to the bean soup and stir until combined.
Melt the butter in a large skillet over medium heat. Add the onion, celery, garlic and parsley and cook until the vegetables are translucent, 7 to 10 minutes. Add the vegetable mixture to the soup, reduce the heat to low and cook 1 hour, adding up to 2 more cups water if the soup is too thick. Season with salt and pepper.
Photograph by Yunhee Kim
Use up your leftover mashed potatoes: Add 1 to 2 cups to the soup along with the diced ham and skip step 3.

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Nutrition Facts

Per Serving Per 100 g

Amount Per 1 Serving
Calories	326.94 Kcal (1369 kJ)
Calories from fat	56.73 Kcal
		% Daily Value*
Total Fat	6.3g	10%
Cholesterol	44.79mg	15%
Sodium	451.84mg	19%
Potassium	1086.74mg	23%
Total Carbs	42.17g	14%
Sugars	4.19g	17%
Dietary Fiber	14.64g	59%
Protein	27.59g	55%
Vitamin C	6mg	10%
Iron	3.7mg	21%
Calcium	125.6mg	13%

Amount Per 100 g
Calories	178.42 Kcal (747 kJ)
Calories from fat	30.96 Kcal
		% Daily Value*
Total Fat	3.44g	10%
Cholesterol	24.44mg	15%
Sodium	246.58mg	19%
Potassium	593.08mg	23%
Total Carbs	23.02g	14%
Sugars	2.28g	17%
Dietary Fiber	7.99g	59%
Protein	15.06g	55%
Vitamin C	3.3mg	10%
Iron	2mg	21%
Calcium	68.5mg	13%

* Percent Daily Values are based on a 2000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.
Find out how many calories should you eat.

Tastes

salty
savory
bitter
sweet

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