Perfect Black Beans

courtesy Melissa D'Arabian

1/2 pound dried black beans
1 medium onion, roughly chopped
3 fresh garlic cloves, pressed
1/2 teaspoon dried oregano leaves
1/2 teaspoon ground cumin
Pinch red pepper flakes
2 teaspoons sugar
2 tablespoons white wine vinegar
Salt and freshly ground black pepper
Chopped scallions, for garnish

The night before, soak the black beans in a large pot of water. The next day, rinse the beans, cover with 3 cups of fresh water and bring to a boil over high heat. Reduce the heat and simmer covered for 30 minutes, skimming off any foam. Stir in the onion and simmer 30 minutes more. Add the garlic, oregano, cumin, and red pepper flakes, and simmer uncovered for 30 minutes, stirring occasionally. Stir in sugar and vinegar, and taste before seasoning with salt and pepper. Turn out into a large serving bowl and garnish with chopped scallions.