In a deep, medium skillet, bring water to a boil. Add quartered potatoes and simmer 12 minutes, until fork tender. Begin other recipes in your menu.
Drain potatoes in a colander set over a pot. Allow the stock to cool and refrigerate for another use. Return the pan you cooked the potatoes in to medium-high heat. Add extra-virgin olive oil and butter; when butter melts add potatoes. Season potatoes with salt, pepper and chopped thyme. Coat and brown the potatoes, turning only occasionally, 7 or 8 minutes.