Croque a l'Oignon Tart

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Democracy Dies successful Darkness

This terrific tart is what happens erstwhile a croque monsieur -- a grilled ham-and-cheese sandwich topped with broiled food condiment -- collides with bulb soup. With a greenish crockery connected the side, it makes a cleanable luncheon offering. On its own, it is an fantabulous archetypal people for a meal party.

The onions tin beryllium prepared a fewer days successful advance. The tart ammunition tin beryllium baked 1 time successful advance. The Mornay condiment tin beryllium made 1 time successful advance.

From The Process columnist David Hagedorn.

Ingredients

For the onions

1 1/2 pounds (3 medium) yellowish onions, peeled, halved and sliced into 1/4-inch half-moons
2 caller bay leaves
2 tablespoons canola oil
2 tablespoons unsalted butter, chopped into tiny cubes
Salt
Freshly crushed achromatic pepper
1/2 spoon chopped caller thyme

For the Mornay sauce

2 tablespoons unsalted butter
2 tablespoons flour
1/2 spoon salt
1/4 spoon freshly crushed achromatic pepper
Pinch grated caller nutmeg
1 cupful lukewarm milk
1 cupful grated Gruyère cheese

For the tart

One 9-inch, pre-baked tart shell, successful its pan
3 ounces precise thinly sliced Virginia oregon Black Forest ham

Nutritional Facts

Per serving

Calories
550
Fat
37 g
Saturated Fat
20 g
Carbohydrates
42 g
Sodium
670 mg
Cholesterol
95 mg
Protein
14 g
Fiber
3 g
Sugar
10 g

This investigation is an estimation based connected disposable ingredients and this preparation. It should not substitute for a dietitian’s oregon nutritionist’s advice.

From The Process columnist David Hagedorn.

Tested by David Hagedorn.

Published December 25, 2012

Updated March 14, 2026