Crab Meat And Mushrooms In Wine Sauce

• 260 gr crab meat (fresh)
• 120 ml milk
• 120 ml wine (white)
• 100 gr bread crumbs
• 40 gr mushrooms (fresh)
• 18 gr butter
• 5 gr flour
• 2 ml dry mustard
• 1 package mushrooms
• some pepper to sauce to