Smoked Salmon & Potatoes

Tender golden potatoes, flaky bites of smoked salmon in a rich creamy cheese sauce. Yummy! 8 cups Yukon Gold potatoes, peeled & thinly sliced 2 tablespoons butter 1 cup thinly sliced onion 2 tablespoons all-purpose flour 3 cups half-and-half 1 cup Swiss cheese 2...