Loaded Hot Dogs with Sriracha Mayo and Crispy Shallots

Hot dogs make a great canvas for toppings that bring crunch and heat. Here the star is homemade crispy shallots, started in cold oil so they brown slowly and evenly without burning; keep the shallot oil for stir fries later. Sriracha mayo adds creamy heat, radishes add a cool peppery snap, and sesame seeds bring toastiness. Set everything out in bowls and let people build their own. Slice the radishes on a mandoline and keep them in ice water until serving so they curl and stay crisp.