Peel and rinse the potatoes. Cut them into smaller pieces. Bring a large and high pan of salted water to a boil. Then add the chopped potatoes and peeled garlic cloves. Put a lid on the pan.
Put the olives aside until needed later. Then drain the cooked potatoes and garlic cloves. Transfer both to the same hot pan and add the blended green olives. Drizzle with a little olive oil. Season with pepper, salt and some nutmeg.