2 tbsp. flour
2 tbsp. butter
3/4 c. milk
3 tbsp. white wine
1 tsp. lemon juice
1 c. sliced fresh or canned mushrooms
1 loaf French bread
6 slices ham
6 slices Swiss cheese

Melt butter in saucepan; add flour, stir until smooth. Slowly add milk and wine. Cook over low heat and stir until thick. Add mushrooms and mix.

Slice bread on angle; top each slice with ham. Spread with sauce and top with cheese. Place under broiler until cheese melts. Serve hot (must be eaten with fork).