Cheesy Asparagus and Prosciutto Gratin Tips, FAQ & printable recipe

Tips for success

For an extra layer of flavor, consider lightly sautéing the garlic in a small amount of butter before adding it to the slow cooker. This mellows the sharp bite of the raw garlic and allows its aromatic oils to permeate the cream more effectively during the long, slow cooking process. Ensure the garlic is not browned, as this can introduce bitter notes.

If you prefer a more pronounced lemon flavor, finish the dish with a tiny squeeze of fresh lemon juice in addition to the zest just before serving. The acidity of the juice cuts through the richness of the Fontina and heavy cream, brightening the entire dish and providing a sophisticated balance that complements the earthy flavor of the asparagus spears.

Variations

• Spicy Gratin: Add one teaspoon of red pepper flakes during the layering process to introduce a subtle, warming heat that complements the richness of the Fontina cheese and the earthy asparagus.
• Herbed Gratin: Incorporate one tablespoon of finely chopped fresh thyme or tarragon during the layering stage to add a fragrant, herbal note that elevates the overall flavor profile of the dish.

Storage and make-ahead

Fridge

Store in an airtight container for up to 3 days.

Reheat

Reheat gently in a saucepan over low heat or in the microwave at 50% power until warm.

Store any leftovers in an airtight container to keep the sauce from drying out. The gratin can be kept in the refrigerator for up to three days.

When storing, try to keep the asparagus intact as much as possible to maintain its texture. Avoid freezing this dish, as the cream-based sauce and the delicate asparagus will not maintain their quality after thawing and reheating.

The components can be prepared in advance to save time. Trim the asparagus and store it in a damp paper towel in the refrigerator, and shred the cheese and mince the garlic the day before.

However, assemble the dish in the slow cooker just before you are ready to start the cooking process to prevent the asparagus from releasing too much water and the cheese from clumping prematurely.

Serving ideas

This gratin is best served hot, directly from the slow cooker or transferred to a warm serving platter. It pairs beautifully with roasted proteins, such as chicken or fish, or can be served as a sophisticated side dish alongside a light brunch salad.

The creamy nature of the sauce makes it a perfect accompaniment to crusty bread or toasted baguette slices for dipping.

Consider serving the gratin with a side of lightly dressed mixed greens to provide a fresh, crisp contrast to the richness of the cheese sauce.

The combination of the warm, savory asparagus and the cool, acidic salad creates a delightful pairing for any occasion. Ensure that the serving platter is warm to keep the sauce from setting too quickly once it is removed from the heat.

Frequently asked questions

Recipe card

Cheesy Asparagus and Prosciutto Gratin

Prep 10 minCook 1 h 30 minRest 5 minTotal 1 h 45 minServes 4

Ingredients

• 2 lb thick asparagus spears, trimmed
• 4 oz prosciutto, crisped
• 2 cups shredded Fontina cheese
• 3 cloves garlic, minced
• 1 tsp lemon zest
• 3/4 cup heavy cream
• 1/3 cup toasted sliced almonds, for serving

Instructions

1. Place the trimmed asparagus spears into the basin of a 6-quart slow cooker. Arrange the crispy prosciutto ribbons over the asparagus. Distribute the shredded Fontina cheese, minced garlic, and lemon zest evenly across the top, then pour the heavy cream over the entire mixture to ensure everything is lightly coated.
2. Cover the slow cooker with its glass lid. Set the appliance to the HIGH heat setting and cook for exactly ninety minutes. The process is complete when the cheese has melted into a bubbling, golden sauce and the asparagus spears have reached a tender-crisp consistency that yields slightly to a fork.
3. Carefully transfer the cheesy asparagus to a serving platter. Garnish the top with the toasted sliced almonds, additional crispy prosciutto, and a fresh dusting of lemon zest. Serve immediately while the cheese sauce is still hot and bubbling to provide the best texture and flavor for your meal.

Contains: milk, tree nuts

Estimated nutrition per serving

Calories

320

Protein

14.5 g

Carbohydrates

8.2 g

Fat

26.5 g

Fiber

3.2 g

Sugar

3.5 g

Sodium

480 mg

Automatic estimate from the ingredient list, not laboratory-verified.