Bacon, Lettuce and Tomato Layered Salad

1 lb bacon, cooked crisp and crumbled 1 tablespoon bacon drippings 1 cup mayonnaise 1/4 cup sour cream 2 teaspoons white vinegar 1 clove garlic, minced 1/4 cup fresh basil, finely chopped 1/8 teaspoon ground black pepper 1/2 teaspoon seasoning salt (Lawrys) 2 teaspoons sugar 1 head iceberg lettuce, rinsed dried and shredded 2 large tomatoes, thinly sliced 1 small red onion, very finely sliced 2 cups seasoned croutons

In a blender, mix together the reserved bacon drippings, mayonnaise, sour cream, vinegar, garlic, salt, pepper, sugar and basil blend dressing and set aside. Layer lettuce, tomato, onion, in a 9X13 aluminum pan. Spread mayonnaise mixture evenly over tomato,top with bacon. Cover and chill 2 hours. Just before serving top with,croutons.