Pressure cooker black beans, seasoned with cumin and mustard seeds, are simple to prepare and are a very versatile side dish or a addition to soup or burritos.
Place black beans into a large container and cover with water; let stand 8 hours or overnight. Drain and rinse beans.
Combine beans, onion, olive oil, garlic, cumin seeds, mustard seeds and salt in a pressure cooker; add enough water as suggested by pressure cooker manual.
Cook beans according to pressure cooker manual until tender; season with salt.
Tips:
Most beans benefit from adding 1 1/2 teaspoons salt to the soaking water.