...Or so says the blog from IDEO. this is my best burger ever. Freshly ground grass fed beef (for the gamier taste and sustainable practice), iceberg lettuce, runny farm-egg, white onion, sliced pickles—top with some sharp cheddar, steak sauce (ketchup, worchestershire, sweet relish, yellow mustard), mayo, and we're good to go. Thank you to Josh Harding for the beautiful images.