This salmon quiche recipe is accented with tarragon. Shallots are a great replacement of onions. Baked to perfection in a fluffy egg custard with white wine and swiss cheese. This recipe is very easy to make. Whisk together the eggs, heavy cream and sour cream. Add the tarragon. Place salmon chunks on the bottom of the quiche pan, add shallots and cheese. Cover with egg mixture and bake.