Wash and peel potatoes and boil until cooked but still firm. For medium potatoes this is about 15 minutes. I stuck a knife through to make sure they were done. You don’t want them overcooked! Then put in fridge to cool.
Once cooled slice each potato (about 1/2 inch thickness). Then use cookie cutter to make heart shapes. I used 2 different sizes, one very small and the other a bit larger. Make sure you use as much of each potato slice as possible so it doesn’t go to waste.
Preheat oven to 400° F. Add olive oil, garlic and onion to cast iron or frying pan. Let sauté until lightly browned then add heart-shaped potatoes.
Sprinkle with salt, black pepper, thyme leaves, paprika and cayenne pepper (just a bit makes these quite spicy!). Sauté potatoes until lightly brown.
Put in oven (make sure pan is oven-safe!) for 30-40 minutes. Check occasionally. You want to cook them until they’re browned and a bit crispy on the outside.