Whipped this up the other night, and we enjoyed it, so I thought I'd share. Convergence nearly gaurantees that a similar or identical recipe exists elsewhere, but I believe that I still get to call this a original, since I'm ignorant of any prior art... All measurements are approximate, modify to suit.
3/4 c. dry white wine (I used Cabernet Sauvignon)
1/2 c. good Parmesan cheese, grated (feel free to subsitute Gruyere, Emmenthaler, or a blend)
1/4 t. salt
1/3 c. half & half (or milk)
1 T. flour