Smoked Salmon Quiche without shells

1 1/2 cups all-purpose flour 1 1/2 teaspoons sugar 1 teaspoon onion salt 1/2 cup vegetable oil 2 tablespoons milk 1 (3 1/2-4 1/2 ounce) package smoked salmon[...]

2 1/4 cups plain white flour (335g) 250 g chilled unsalted butter , chopped 1 egg yolk 1/4 teaspoon white wine vinegar 20 ml milk 1 Whiz flour, butter and[...]