Grilled or Sauteed Soft Shell Crab BLT

Name: Grilled or Sauteed Soft Shell Crab BLT
Ingredients: 2 jumbo soft shell crabs, cleaned; Blended olive oil, if grilling; Salt and freshly ground black pepper; Flour, for dredging, if sauteing; 1 thick slice brioche, grilled or toasted; 1 cup Basil Mayonnaise, recipe follows; 6 to 8 arugula leaves, washed and dried; 2 to 3 slices beefsteak tomato; 3 thin slices pancetta, cooked and kept warm; 1 sprig rosemary, for garnish; Shoestring potatoes or potato chips; 2 egg yolks; 2 teaspoons warm water; 1 cup fresh basil leaves; 1 1/2 cups blended oil; Pinch salt and freshly ground black pepper