SOURCE: Martha Stewart Living magazine, edition unknown (I got this secondhand, from a forum).

Ingredients (there are no exact measurements; adjust as desired)
Sweet potatoes (or yams)
Kosher salt
Fresh Garlic (lots)
Thyme
Olive oil

Instructions
Slice sweet potatoes into bite sized pieces (thin is better than thick).

Mix in a bowl with freshly minced garlic (the more the better – I cannot stress this enough), olive oil, kosher salt (to taste) and thyme. Put into baking pan or glass casserole and bake at 400 degrees for 35-40 minutes, or until tender.