Crab Cake Sliders with Blood Orange Aioli

Name: Crab Cake Sliders with Blood Orange Aioli
Ingredients: 1 cup mayonnaise; 2 to 3 tablespoons freshly squeezed blood orange juice (about 1/2 orange); 1 tablespoon stone-ground mustard; 1 teaspoon blood orange zest; 1 clove garlic, grated; Kosher salt and freshly ground black pepper; 18 butter crackers, crushed (about 3/4 cup); 1/4 to 1/2 cup mayonnaise, plus more for schmearing; 1 tablespoon roughly chopped fresh parsley; 1 1/2 teaspoons seafood seasoning, such as Old Bay, plus additional for garnishing; 8 dashes hot sauce; 1 large egg, beaten; 2 pounds lump blue crab meat, shell and cartilage picked out; Butter, for spreading; 24 potato slider buns, split; Baby mesclun greens, for topping