Bacon and Scallion Quiche

Name: Bacon and Scallion Quiche
Ingredients: 1 ¾ cups all-purpose flour, plus more for dusting; 1 teaspoon coarse salt; 1 stick cold unsalted butter, cut into pieces; 1 large egg, plus 1 large egg yolk; 3 tablespoons ice water; 6 large eggs; 1 ½ cups heavy cream; 1 ½ cups whole milk; 1 ½ teaspoons coarse salt; ½ teaspoon freshly ground pepper; 3 thinly sliced scallions (if making 2 quiches, double amounts); 4 slices crumbled cooked bacon (if making 2 quiches, double amounts)