Preheat oven to 350 - cook macaroni according to the directions on the box. Drain and set aside
In a large bowl combine salt, flour,mustard, pepper, sour cream, eggs, and evaporated milk. - whisk VERY well
In a 9x13 casserole greased place half the pasta layered with half of the cheese, add half of the crab - repeat the layer. Pour your flour mixture on top of the casserole.
Bake uncovered for 30 minutes.
Enjoy!
Recipe by Budget Savvy Diva at https://www.budgetsavvydiva.com/2013/05/world-crab-mac-cheese-recipe/