Potato Salad With Ham with onion

3 lbs red potatoes (peeled and cut in half or quarters, depending on the size of potato) 5 -6 slices bacon , cooked to very crisp and crumbled 2 tablespoons[...]

2 3/4 lbs salad potatoes , such as Charlotte, halved if large (1.25 kg) 1 bunch spring onion 1 tablespoon peanut oil or 1 tablespoon sunflower oil 1 teaspoon[...]

3 pounds red potatoes scrubbed and diced 1 each cucumber cleaned, drained and diced 1/4 cup mayonnaise, light * 1/2 cups yogurt, low-fat plain 1 tablespoon[...]