Breakfast · Part 1 of 3: Ingredients
Buttery Croissant and Prosciutto Breakfast Strata

- Prep
- Cook
- Total
- Serves
- 6
Elevate your weekend breakfast with a dish that combines the buttery crunch of French croissants with the savory depth of Italian prosciutto and melted Fontina. This slow-cooked strata is the perfect solution for a stress-free morning, allowing you to assemble everything in advance and let the slow cooker handle the heavy lifting.
It is a sophisticated, bistro-style meal that delivers impressive results with minimal effort, making it ideal for hosting friends or treating yourself to a cozy, flavorful breakfast.
A breakfast strata is essentially a savory bread pudding, but using buttery croissants takes it to an entirely new level of indulgence. By slow-cooking the assembly, the custard gently infuses the bread while the prosciutto and asparagus meld with the cheeses.
This method ensures that every bite is balanced, featuring a tender, custardy base and perfectly crisp edges. It is a reliable, crowd-pleasing recipe that avoids the typical oven-baked dryness by maintaining a moist environment, resulting in a luxurious texture that feels like it came straight from a Parisian café kitchen.
Ingredients
- 6 day-old butter croissants, torn into chunks
- 4 oz prosciutto, torn into ribbons
- 1 bunch asparagus, trimmed and cut into spears
- 1 cup Fontina cheese, shredded
- 1/2 cup Parmigiano cheese, grated
Custard
- 8 large eggs
- 1 cup gruyere cream
- 1 tbsp Dijon mustard
Why this recipe works
The slow cooking process is the secret to this strata's unique texture. By cooking on a low setting over three hours, the egg custard has ample time to be fully absorbed by the croissant pieces.
This slow absorption prevents the bread from becoming mushy, instead turning it into a rich, velvety base that supports the salty prosciutto and tender asparagus. The steady, low heat ensures the eggs coagulate gently, resulting in a luxurious, melt-in-your-mouth consistency that is difficult to achieve with high-heat baking methods.
Placing a towel under the lid is a classic culinary technique that solves the common slow-cooker problem of excess moisture. As the strata cooks, steam rises and would normally condense on the lid before dripping back into the dish.
The towel acts as a barrier, trapping that moisture so it does not dampen the top layer. This allows the heat to circulate effectively, browning the croissant peaks while the bottom and center remain perfectly custardy. It is the most effective way to ensure a complex contrast of textures.
Notes and substitutions
Selecting the right croissants is vital for the success of this recipe. Ideally, use day-old croissants from a bakery; they are slightly drier than fresh ones, which helps them soak up the egg mixture without disintegrating. If only fresh croissants are available, tear them into chunks and leave them out on a tray for an hour to stale slightly. The Fontina cheese is chosen for its superior melting qualities and mild, nutty flavor, but it can be replaced if necessary to suit your pantry.
The choice of equipment is straightforward, but the slow cooker size matters. A 6-quart vessel provides the ideal surface area for the ingredients to layer effectively. Using a kitchen towel under the lid requires a standard cotton tea towel that is clean and free of synthetic fibers. Ensure the towel is positioned carefully so it does not hang over the edges of the slow cooker, which could pose a fire hazard. Always monitor the cooking progress to ensure the strata reaches the correct internal temperature.
- Fontina cheese: Use Gruyere or mild Havarti as a smooth-melting substitute that maintains the creamy texture required for this strata.
- Prosciutto: Replace with cooked bacon crumbles or thin slices of pancetta for a similar salty, savory profile in the dish.
Equipment
- 6-quart slow cooker
- whisk
- mixing bowl
- kitchen towel
- cutting board
- chef knife
Up next · Part 2 of 3
3 steps · 3 h of cooking · what to look for at each stage
Step-by-step instructions (Part 2)