INGREDIENTS
1 10 ounce package
Spinach, frozen
1/2
Sweet onion, large
3
Eggs, large
1 1/4 cups
All-purpose unbleached flour
1
Filling
1/2 tsp
Kosher salt
1/4 tsp
Pepper
1/4 tsp
Sea salt
1/2 tsp
Sugar
1 tsp
Olive oil
1
Crust
4 tbsp
Ice water
1/2 cup
Butter, unsalted
1/2 cup
Cheddar, grated
3 oz
Cream cheese
1/3 cup
Half and half
1/4 cup
Parmesan, grated