Easy peasy ...
Brown/ steam crabs in butter and old bay seasoning. Add butter first.. let it melt and brown crabs lightly. To steam throw in a few ice cubes. .. when crabs are cooked.. add your favorite pasta sauce. I use a marina. Simmer 20-30 minutes. ..
Cook and drain pasta and add sauce and crabs. Serve with a generous amount of napkins.
Goes particularly well with a chilled rose or light bodied beer.