Squash is a good source of potassium. Beans are a good source of potassium. Avocado is high in potassium. Kiwis are packed with potassium, an essential mineral that helps the body maintain proper levels of hydration and electrolytes.
Step 2. Boil 1 to 1 1/2 qt. of water in a large pot. When the water has reached a rolling boil, dump the escarole for 2 minutes, stirring once or twice as the stems soften. Lift the escarole out with a slotted spoon onto a plate and transfer to the colander where you may leave it to drain for up to an hour.
In a large heavy sauce pan, add beans and enough water to cover by 2 inches. Add oil to prevent foaming. Cover and bring to a boil. Immediately reduce heat and simmer covered on low heat until tenderâ15 minutes for small beans, 25 minutes for medium sized, and 35 minutes for large beans like cranberries.