1. Sift through the dried lentils and pick out any small stones or stray bits. Rinse the lentils in a fine mesh sieve under cold running water.

Stove Top

1. Add the lentils, water and bay leaf in a pot. Bring to a boil over high heat. Reduce the heat and simmer, covered for about 20 to 30 minutes or until tender.
2. Drain and remove the bay leaf.

Slow Cooker

1. Place 1 cup of lentils and 2 or 2.5 cups of water or broth into the slow cooker. Add 1 bay leaf (optional).
2. Cover and cook on low for 3 hours or on high for 1.5 hours (one hour and one half) or until the lentils are tender.
3. Drain and discard the bay leaf (if using).

Instant Pot/Pressure Cooker

1. Place 1 cup of lentils and 2 1/4 (two and one quarter) cups of water in the Instant pot. Add a bay leaf.
2. Close the lid and seal the pot. Cook on high pressure for 10 minutes (11 minutes for a softer texture).
3. When the cooking cycle is complete, release the pressure by doing a quick release. Stir. Most likely draining won't be necessary.