AIOLI - In the small bowl, mix all of the aioli ingredients. Cover and store in the refrigerator.
Preheat the oven to 475° F.
CRAB CAKES - In the large bowl, combine the celery, minced chives, mayonnaise, egg, mustard, and hot sauce. Stir it all with a fork, then add the crab and ¼ cup of the panko (save the rest of the panko for coating). Stir gently.
Put remaining 1 cup panko in the rimmed plate or pie tin. Use your hand to make 24 crab cakes, each about 2 inches wide and ½ inch thick. Roll each cake in panko and place on the prepared baking sheet.
Bake until golden brown, about 15 to 18 minutes. Transfer the hot crab cakes to a platter and top with the aioli. Garnish with fresh chives and serve hot.