Flaky, cheesy, and packed with savory goodness, this ham and cheese croissant recipe is the ultimate comfort food for breakfast, brunch, or a cozy midday snack.
Each bite delivers the rich, buttery crisp of baked croissants paired with melty Swiss cheese and tender slices of smoky ham—classic flavors with an irresistible twist.
What You’ll Need for These Ham and Cheese Croissants
- Mini croissants – The golden, flaky foundation that holds everything together with buttery charm.
- Smoked deli ham – Adds a savory, slightly sweet depth that complements the buttery pastry perfectly.
- Swiss cheese – Melts beautifully with a nutty sharpness that balances the richness of the croissants and ham.
- Unsalted butter – Creamy and essential for the flavor-packed spread that keeps everything moist and flavorful.
- Dijon mustard – Adds just the right amount of tangy sharpness to cut through the richness.
- Green onions – Delivers a fresh, mild bite that lifts all the flavors.
- Honey – A touch of sweetness to round out the savory elements.
- Egg white – Helps create that golden, glossy top on each croissant.
- Poppy seeds – For a bit of crunch and visual flair.
How to Make Ham and Cheese Croissants in the Oven
Start by preheating your oven and prepping a baking dish. Mix together the butter, Dijon mustard, green onions, and honey into a smooth, flavorful spread. Season lightly to taste.
Slice the mini croissants in half horizontally, then generously spread the butter mixture on both sides. Layer each with smoked ham and Swiss cheese, pressing gently to close the sandwiches.
Arrange the stuffed croissants in your baking dish in a single layer. Whisk the egg white with a splash of water and brush the tops of the croissants. Finish with a sprinkle of poppy seeds.
Bake until golden, toasty, and fragrant—just 15 to 18 minutes. Let them cool slightly before serving warm.
Extra Tips for Golden, Gooey Perfection
For a richer taste, try substituting gruyère for Swiss or adding a slice of tomato for extra moisture and brightness. If your croissants are on the softer side, a few minutes in the toaster oven before assembling will crisp them up nicely.
You can also prep these croissants the night before, cover them tightly, and refrigerate. Just brush with egg wash and bake fresh in the morning for a no-stress brunch.
Keeping Your Croissants Fresh (If You Have Leftovers)
Store any leftover ham and cheese croissants in an airtight container in the refrigerator for up to 3 days. Reheat in a 300°F oven for about 10 minutes to restore their flakiness—avoid the microwave, which softens the pastry.
To freeze, wrap each baked croissant tightly in foil and place in a freezer bag. Reheat directly from frozen in the oven at 350°F for 15 to 20 minutes.
Ham and Cheese Croissant Recipe
Ingredients
- 12 mini croissants sliced horizontally
- 12 slices Swiss cheese cut on the diagonal
- 2 teaspoons poppy seeds
- 2 tablespoons Dijon mustard
- 1 large egg white
- ¼ teaspoon ground black pepper
- 2 green onions finely sliced
- ⅓ cup unsalted butter softened
- 1 tablespoon honey
- 1 pound thinly sliced smoked deli ham
- ½ teaspoon sea salt
Instructions
- Preheat the oven to 375°F and prepare a 9 x 13-inch baking dish with a light coating of oil or nonstick spray. In a small mixing bowl, stir together the softened butter, Dijon mustard, green onions, and honey; season the mixture with sea salt and black pepper to taste. Spread this seasoned butter evenly over both halves of each croissant. Assemble the croissant sandwiches by layering each with smoked ham and a slice of Swiss cheese, then gently close. Arrange the prepared croissants in a single layer in the baking dish. In a separate bowl, beat the egg white with 1 tablespoon of water and brush the mixture over the tops of the croissants; finish by sprinkling with poppy seeds. Bake in the preheated oven for 15 to 18 minutes, or until the croissants are golden and crisp. Allow them to rest for 5 minutes before serving warm.
