11 Ingredients
  • 12 tablespoons (1 1/2 sticks) cold, unsalted butter, cut into small pieces, plus more for tart pan
  • 12 tablespoons (1 1/2 sticks) cold, unsalted butter, cut into small pieces, plus more for tart pan
  • 2 cups all-purpose flour, plus more for dusting
  • 1 1/2 teaspoons salt
  • 1/2 cup ice water
  • 1 1/2 pounds onions, finely chopped
  • 1 large egg, lightly beaten
  • 1/2 cup heavy cream
  • 1/4 teaspoon freshly ground pepper
  • 1 pinch of freshly grated nutmeg
  • 1/4 cup freshly grated Parmesan or Swiss cheese
Nutrition
702
35% daily value
6 servings
                                       
                                            vegetarian
     

Fat

86% 56

Saturated

175% 35

Trans

- 2

Monounsaturated

- 15

Polyunsaturated

- 2

Carbs

14% 43

Carbs (net)

- 40

Fiber

12% 3

Sugars

- 6

Sugars, added

- 0

Protein

17% 9

Cholesterol

61% 184

Sodium

26% 615

Calcium

10% 101

Magnesium

7% 26

Potassium

7% 255

Iron

13% 2

Zinc

6% 1

Phosphorus

21% 146

Vitamin A

55% 493

Vitamin C

14% 9

Thiamin (B1)

26% 0

Riboflavin (B2)

19% 0

Niacin (B3)

13% 3

Vitamin B6

9% 0

Folate equivalent (total)

37% 150

Folate (food)

- 40

Folic acid

- 64

Vitamin B12

6% 0

Vitamin D

0% 1

Vitamin E

9% 2

Vitamin K

7% 6
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