Hot Miso Crab

Name: Hot Miso Crab
Ingredients: 1/2 cup silken tofu; 3 tablespoons white miso; 1 tablespoon freshly squeezed lemon juice; 2 tablespoons sherry vinegar (or malt vinegar if that's lying around); 1/2 teaspoon garlic powder; 1 teaspoon onion powder; 1/4 teaspoon cayenne; 1/2 teaspoon freshly ground black pepper; 1 8-ounce can jumbo lump crab; 1/4 cup sour cream; 2 tablespoons finely chopped fresh chives; Olive oil; 1 loaf miche bread or baguette, cut into 15 to 20 1/2-inch-thick slices