Quiche with Scallions and Cheddar Cheese | America's Test Kitchen

Ingredients

• 1 cup (5 ounces/142 grams) all-purpose flour
• 1/2 cup finely grated Parmesan cheese
• 1/4 teaspoon salt
• 6 tablespoons unsalted butter, softened
• 2 ounces (57 grams) cream cheese softened
• 5 slices bacon, chopped fine
• 3/4 cup half-and-half
• 3/4 cup sour cream
• 2 large eggs plus 1 yolk
• 1/4 teaspoon pepper
• pinch nutmeg
• 1/2 cup shredded sharp cheddar cheese
• 2 scallions (1 minced, and 1 thinly sliced)