Preheat oven to 375° and grease a standard 12-cup muffin tin with cooking spray.

In a small saucepan melt butter over medium heat. Add garlic and cook for 2 minutes. Stir in cream, garlic powder, nutmeg, salt and pepper. Remove from heat.

Peel potatoes and very thinly slice with knife or mandolin. Place in a large bowl. Add the cream mixture.

Divide the potato mixture between muffin tin cups to create 12 potato stacks. Spoon remaining cream mixture over the potatoes; press down on the potatoes. Cover with foil and bake 30 minutes.

Remove the foil; sprinkle the stacks with cheese. Bake additional 10-15 minutes (uncovered).

Let stand 10 minutes before serving. Sprinkle with chives!