Uni Spoonbread with Buttermilk Dashi

Name: Uni Spoonbread with Buttermilk Dashi
Yield: Yield: 6-8 servings
Cuisine: American
Ingredients: 3 small pieces Jamón Ibérico fat; ¼ cup shallots, sliced; 1 tablespoon unsalted butter, plus extra to grease the pan; 1 small clove garlic, sliced; ½ cup buttermilk; 1 piece kombu, 2 inches wide; Ponzu Vinaigrette; 1½ teaspoons granulated sugar; Caviar and Jamón Ibérico Topping; ¼ teaspoon baking powder; 3 ounces Osetra caviar; 3 pieces sea urchin (uni) per serving; Radish sprouts, as needed; 1½ ounces Jamón Ibérico, cut into brunoise; ½ teaspoon salt; Spoonbread; 2 eggs, separated; Nasturtium leaves, as needed (if available); Salt, to taste; ½ teaspoon Dijon mustard; ½ cup grapeseed oil; ½ cup ponzu; 2 cups water; 1 clove garlic, sliced; ¼ cup hondashi granules; 2 teaspoons grapeseed oil; 2 shallots, thinly sliced; 2 cups whole milk; ½ cup fine cornmeal; Buttermilk Dashi