• Spread the olive oil evenly in the bottom of a Dutch oven measuring 12 or 14 inches in diameter.
• In a thin circle, slice the potatoes. Fill the Dutch oven with the potatoes and spread them in a single layer.
• On top of the potatoes, sprinkle the salt, pepper, cheese, and rosemary. Place a dot of butter evenly over each potato.

For Baking in the Oven

• Set the oven to 375oF and preheat it.
• For 35 minutes, bake. Once the potatoes are tender and golden brown, remove the cover and bake for an additional 10-15 minutes.

For Baking with Coals

• Put 9 coals on the bottom and 18 coals on top of a dutch oven that is on a stand or on a safe ground area. For a shallow 12-inch dutch oven, this should heat to 375 degrees.
• During the cooking process, monitor the coals and add more when the original coals lose their heat.
• The bottom of the Dutch oven may need 1/3 cup water added if the potatoes are cooking too quickly despite the coal adjustment.
• It takes about 45 minutes for the potatoes to become soft.