Roasted Fingerling Potatoes become the eeriest bloody fingers when drizzled with or dipped into ketchup. Shop for the longest and most crooked potatoes you can find and transform these misfit veggies into a scrumptious treat. Pre-heat the oven to 400 degrees. Wash, dry and cut the potatoes lengthwise. Grease a baking sheet with olive oil and place cut potatoes facing cut-side up on a baking sheet. Sprinkle generously with kosher salt and bake for approximately 45 minutes until golden. For the finishing effect, squeeze and squiggle ketchup atop the fingerlings.