You do not need to soak the dried beans ahead of time.
Heat oven to 325°F.
Rinse the dried beans in a colander.
Transfer the beans to a 3-quart (or larger) Dutch oven or pot with a tight-fitting lid. Note that the pot and lid need to be oven-proof.
Add bay leaf and 2 teaspoons of salt (if using).
Add enough water to cover beans by about an inch.
Cover pot and cook for 75 minutes.
At this point check beans and stir them. Test one - if tender then remove from oven. If not, put them back in the oven for 15 minute intervals, adding a cup of hot water if they are drying out. They are likely to take 90 to 120 minutes (less for smaller beans - more for larger beans).
Let cool. Drain and rinse beans in a colander.
Notes
1 pound of dried beans (16 ounces) equals approximately 6 cups of cooked beans (or four 15-ounce cans of beans). One can of beans is approximately 1-1/2 cups.
Have extra beans? Place them in a bag and freeze for future use.