2. Place beans in the slow cooker. Add 8 cups cold water. Turn the slow cooker on high and set for 4 hours, but taste it after 2 hours. Some like it just cooked, some like the beans mushy. Cook it to your preference somewhere between 2 to 4 hours.
3. When it gets to your preference, stir in sugar and cook for another 20 minutes. Serve warm or chill and serve cold. Store in an airtight container in the fridge for 1 week.