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5.0 from 15 votes

Ham and Cheese Puff Pastry Slab Pie

A rustic, savory slab pie made with flaky puff pastry, ham, Swiss cheese, and caramelized onions. Serve it for a casual lunch, brunch, or an appetizer.

Prep Time
15 mins
Cook Time
15 mins
Total Time
40 mins
Servings: 16 squares or 8 large strips
Calories: 241 kcal
Course: Appetizer
Cuisine: American

Ingredients

  • 2 heets puff pastry , defrosted and rolled into 10-inch squares
  • 1 tablespoon Dijon mustard (Smooth or grainy, your preference)
  • 6 ounces shredded Emmental swiss cheese
  • 4 ounces thinly-sliced ham (I use Black Forest or Virginia)
  • 1/3 cup caramelized onions
  • 1 teaspoon chopped thyme leaves
  • 1 large egg
  • 1 tablespoon milk
  • 1/4 teaspoon garlic powder
  • 1 tablespoon chopped fresh parsley

Instructions

    Cup of Yum
  1. Preheat oven to 400 degrees F. Line a baking sheet with parchment paper.
  2. Place one piece of puff pastry onto the baking sheet and spread with mustard, leaving a 1/2-inch border.
  3. Sprinkle half of the shredded cheese over the mustard. Layer ham slices over the cheese, followed by the caramelized onions, thyme, and remaining cheese. 
  4. In a small bowl, whisk together egg, milk, garlic powder, and parsley. 
  5. Lightly brush the border of the puff pastry with the egg wash. Place the second square of puff pastry over the top and press the edges to seal.
  6. Brush a 1/2-inch border on the top sheet of puff pastry with egg wash. Fold bottom edge of puff pastry over to create a crust of double thickness. Crimp edges with a fork. 
  7. Brush top of puff pastry with egg mixture (you won't use the entire amount). Cut three, 1- to 2-inch slits in the center of the pie to allow steam to escape while baking.
  8. Bake for 25 minutes, until puffed and golden. Let stand for 10 minutes before slicing into squares or strips and serving.

Notes

  • Substitute Cheddar or Jack cheeses for the Emmental. Or use a mix!
  • Substitute Honey Mustard for the Dijon
  • Instead of ham, try thinly-sliced roast beef with cream-style horseradish instead of mustard.

Nutrition Information

Calories 241kcal (12%) Carbohydrates 14g (5%) Protein 7g (14%) Fat 16g (25%) Saturated Fat 5g (25%) Cholesterol 26mg (9%) Sodium 238mg (10%) Potassium 66mg (2%) Vitamin A 130IU (3%) Vitamin C 0.8mg (1%) Calcium 91mg (9%) Iron 1mg (6%)

Nutrition Facts

Serving: 16squares or 8 large strips

Amount Per Serving

Calories 241

% Daily Value*

Calories 241kcal 12%
Carbohydrates 14g 5%
Protein 7g 14%
Fat 16g 25%
Saturated Fat 5g 25%
Cholesterol 26mg 9%
Sodium 238mg 10%
Potassium 66mg 1%
Vitamin A 130IU 3%
Vitamin C 0.8mg 1%
Calcium 91mg 9%
Iron 1mg 6%

* Percent Daily Values are based on a 2,000 calorie diet.