The Flat Croissant Ham & Cheese Sandwich Mixes Trendy and Traditional for the Perfect Savory Breakfast

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Our Test Kitchen combined the viral flat croissant with a classic ham and cheese sandwich for a delicious savory snack: Breakfast will never be the same.

Prep Time:
15 mins
Cook Time:
24 mins
Total Time:
39 mins
Servings:
4
Yield:
4 sandwiches

If you love something, make it flat—that’s how the saying goes, right? When it comes to flat croissants, at least, that’s definitely the case. We all know (and love) the classic flaky croissant, but bakeries and home chefs have taken the pastry to new heights (or lows?) by flattening it and frying it to make it even crispier.

The flat croissant trend is a great way to breathe a second life into a past-its-prime pastry, but it's also given us all new ways to enjoy croissants. People are dipping flat croissants in chocolate and other coatings or they’re sprinkling them with sugar, sprinkles, or other sweet toppings. In short, everyone is making their own take on the flat croissant—and now we’re doing the same with our Flat Croissant Ham & Cheese Sandwich.

flat ham and cheese croissants

Kelsey Hansen. Food Stylist: Annie Probst. Prop Stylist: Addelyn Evans

We’ll be the first to say that a good breakfast dish can work for any meal, breakfast-for-dinner or otherwise, and the Flat Croissant Ham & Cheese Sandwich is exactly the kind of dish that transcends the boundaries of the morning meal and keeps you going for hours, whenever you eat it. The flaky croissant, toasted to perfection, gives you the carbs you need for energy all day. Inside, thinly sliced deli ham and a melty blend of gruyere and white cheddar cheese provides protein to keep you fuller longer. We also added a hint of tangy stone ground mustard for a zesty kick and a drizzle of golden honey (that caramelizes!) for an extra little pizzazz.

The Flat Croissant Ham & Cheese Sandwich is deceptively simple, in the way only the best sandwiches are. It’s quick and easy to make and involves only a few ingredients, meaning you can cook this breakfast before you’ve had your coffee—and while your pot brews. And our cooking technique truly sets the whole dish apart: Instead of slicing the croissant in half, you’ll cut a slit along one side of the pastry and create a pocket, transforming your croissant into a vessel that’s easy to hold (and you don’t have to worry about all of those delicious innards slipping out).

The result is a breakfast sandwich that’s elevated enough to impress even the most discerning palates. Give these Flat Croissant Ham & Cheese Sandwiches a shot—they’ll leave you craving more, but too full for seconds.

Ingredients

  • 4 croissants

  • 1/4 cup stone ground mustard, divided

  • 8 slices thinly sliced deli ham (8 oz), divided

  • 1 cup gruyere cheese, shredded (4 oz), divided

  • 1 cup white cheddar cheese, shredded (4 oz), divided

  • 1/2 cup (1 stick) butter, cut into 1 Tbsp pieces, divided

  • 1/4 cup honey

Directions

  1. slicing open croissant

    Kelsey Hansen

    Cut a slit in the long side of each croissant, leaving the ends connected to create a pocket.

  2. spreading mustard inside croissant

    Kelsey Hansen

    Spread 1 Tbsp mustard on the inside of the pocket of each croissant.

  3. placing ham inside croissant

    Kelsey Hansen

    Place about 2 slices of ham (2 oz) and 1/4 cup of gruyere (1 oz) and 1/4 cup of cheddar cheese (1 oz) on the inside of the croissant. Repeat with remaining croissants.

  4. flattening croissants with rolling pin

    Kelsey Hansen

    Place filled croissants on a cutting board or surface. Flatten each croissant by pressing down with a rolling pin, or heavy pot, sealing ham & cheese inside of the croissant.

  5. flatting croissant in pan with heavy pot

    Kelsey Hansen

    Melt 2 Tbsp butter in a large nonstick skillet over medium-low heat. Once butter is melted and starting to bubble, add the flattened croissant. Place a heavy pan on top to press down the sandwich. Cook for about 3 to 4 minutes on each side, or until the exterior is starting to brown.

  6. drizzling honey on flat croissant

    Kelsey Hansen

    Drizzle 1 Tbsp honey over the golden croissant to coat both sides. Continue to cook another 2 to 3 minutes, turning halfway through or until honey has caramelized and the croissant is crispy. Transfer sandwich to a piece of parchment on a cutting board. Wipe the pan out with a paper towel between and repeat adding butter to the pan and frying with remaining croissants. Serve warm.

Nutrition Facts (per serving)

936 Calories
64g Fat
59g Carbs
34g Protein
Nutrition Facts
Servings Per Recipe 4
Calories 936.2
% Daily Value *
Total Fat 64.1g 82%
Saturated Fat 36g 180%
Cholesterol 201.8mg 67%
Sodium 1702.1mg 74%
Total Carbohydrate 58.9g 21%
Dietary Fiber 3g 11%
Total Sugars 27.5g
Protein 33.8g 68%
Vitamin D 0.8mcg 4%
Vitamin C 0.7mg 1%
Calcium 561.3mg 43%
Iron 2.8mg 15%
Potassium 486mg 10%
Fatty acids, total trans 1.2g
Vitamin D 30IU
Alanine 1.4g
Arginine 1.5g
Ash 6.9g
Aspartic acid 2.5g
Caffeine 0mg
Carotene, alpha 0mcg
Choline, total 90.6mg
Copper, Cu 0.2mg
Cystine 0.4g
Energy 3917.7kJ
Fluoride, F 13mcg
Folate, total 96mcg
Glutamic acid 6.9g
Glycine 1.1g
Histidine 1.1g
Isoleucine 1.7g
Leucine 2.9g
Lysine 2.3g
Methionine 0.8g
Magnesium, Mg 65.8mg
Manganese, Mn 0.5mg
Niacin 5.4mg
Phosphorus, P 604.8mg
Pantothenic acid 1.5mg
Phenylalanine 1.7g
Phytosterols 7.3mg
Proline 3.1g
Retinol 536.3mcg
Selenium, Se 63mcg
Serine 1.6g
Theobromine 0mg
Threonine 1.3g
Vitamin E (alpha-tocopherol) 2.1mg
Tryptophan 0.5g
Tyrosine 1.5g
Valine 2g
Vitamin A, IU 1982.3IU
Vitamin A, RAE 544.4mcg
Vitamin B-12 1.2mcg
Vitamin B-6 0.3mg
Vitamin K (phylloquinone) 5.3mcg
Water 91.2g
Zinc, Zn 4.2mg

*The % Daily Value (DV) tells you how much a nutrient in a food serving contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.

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