Caramelized Onion and Spinach Quiche

Ingredients

• 1 cup (125 g) all-purpose flour
• ¼ cup (31 g) whole wheat flour
• 1 tsp. Diamond Crystal or ½ tsp. Morton kosher salt
• 1 tsp. herbes de Provence
• 10 Tbsp. unsalted butter, sliced ½" thick
• Rice flour or all-purpose flour (for dusting)
• 1 large sweet onion (such as Vidalia), thinly sliced
• 1 Tbsp. extra-virgin olive oil
• 1 tsp. Diamond Crystal or ½ tsp. Morton kosher salt, plus more
• 3 large eggs
• 3 sprigs thyme, leaves finely chopped
• ½ cup heavy cream
• ½ cup whole milk
• ½ tsp. freshly ground pepper
• 2 oz. Gruyère, finely grated
• 1 oz. Parmesan, finely grated
• 2 cups baby spinach

AI Coach 

Ask AI

Personal Notes 

Save Notes

Organization Tags 

Save Tag