Gather the ingredients.
Wash the unpeeled potatoes well.
Place the potatoes in a baking pan lined with a baking sheet.
Cover the potatoes with another baking sheet.
Bake for 1 hour or until the potatoes are tender. You can check with a fork. Let cool.
Peel, wash and thinly slice the red onions.
Place the onions into a large bowl. Gently mix the sliced onions with one teaspoon of salt. Set aside.
Wash the basil well and dry.
Remove the basil leaves from their stems.
Bunch the leaves together and dice finely. Set aside.
Remove the skin from the cooled potatoes and cut them into small cubes.
Place the potatoes into a large bowl.
Mix the olive oil, lemon juice, lemon rind, turmeric and ground black pepper until well blended into a dressing.
Add the dressing to the cubed potatoes and mix gently until well blended.
Add the pre prepared diced onions and diced basil and gently mix until well blended.