Asparagus Prosciutto Crostini

Asparagus and Prosciutto Crostini with Fontina Cheese Sauce
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If you’re still looking for a special Easter brunch recipe, I think this would be a great option. I think this dish is Spring on a plate. Not just because it features lovely Spring asparagus, but for the combination of the bright green asparagus and the vivid yellow sauce. So pretty together. And I’m pleased to tell you it tastes as good as it looks!

A perfect Easter brunch recipe! Roasted asparagus, wrapped in prosciutto on crostini, with a Fontina cheese sauce.

This dish is easy to put together and made with simple ingredients, but looks and tastes like so much more. Beyond Easter, if you’re looking for a great way to use seasonal asparagus for a nice lunch or a light supper, This would be great paired with a salad or a small bowl of roasted tomato soup (of some roasted tomatoes).

As for some details on this lovely dish, I’ll start with the cheese. I think Fontina is pretty easy to find these days. I know it’s easily found in my small town now, so I figure that means it must be just about everywhere. If you can’t find it though, Swiss or Emmental would be a good substitution. Look for a great loaf of crusty bread. It can be round or oblong, but look for one that has great flavour and is about 7 or 8 inches wide, when cut.

Easter Brunch Recipe Idea. Asparagus and Prosciutto Crostini with Fontina Cheese Sauce

The sauce is not difficult to make, but because of the egg yolks, it does need a little care in heating and especially re-heating. If it is over-heated, it will break in a bad scrambled egg kind of way. It’s best served right away, but if you need to re-warm, do so gently with the same double-boiler set-up you used to cook it.

If you’re looking to make ahead, I would suggest that you could trim and wrap the asparagus ahead and make the sauce ahead (heeding the warning to re-warm it gently). To serve, just roast the asparagus and toast the bread while the sauce re-warms. Speaking of asparagus, I used 3 spears, but I think 5 would have worked nicely as well, especially if eating for a light supper instead of an appetizer.

Perfect for Easter Brunch: Asparagus and Prosciutto Crostini with Fontina Cheese Sauce

[pinit] Thanks to my daughter for being the hand model for this shot. What? You thought that was my hand sporting the navy blue nail polish? I’m not nearly that cool ;)

Roasted Asparagus and Prosciutto Crostini with Fontina Cheese Sauce
Prep time
Cook time
Total time
This dish is perfect as an appetizer, for Sunday brunch or for a light supper. Best when asparagus is seasonal and fresh, in the Spring. If you can't find Fontina, Swiss or Emmental would be a good substitute. Be careful with re-heating the sauce. Be sure to do it low and slow, or it will break.
Recipe type: Breakfast
Serves: 4-6

  • Cheese Sauce:
  • 1 Tbsp. unsalted butter
  • 4 oz. Fontina cheese, rind discarded, cut into 1/4-inch dice (about 3/4 cup)
  • 1/2 cup milk
  • 2 large egg yolks

  • For crostini:
  • 4-6 slices from a large crusty loaf of bread (about 7-8 inches wide), cut into 1/2-inch slices
  • 1 large garlic clove, chopped
  • 2 Tbsp. extra-virgin olive oil
  • 4-6 slices prosciutto
  • 1 pound thin asparagus, trimmed. (3-5 spears per crostini)
  1. Melt butter in a double boiler or in a metal bowl set over a pan of simmering water. Add Fontina and milk and heat, stirring with a whisk, until cheese begins to melt. Whisk in the egg yolks and cook, stirring constantly with a whisk, until smooth and slightly thickened, about 7 minutes.
  2. Remove pan from heat and the remove the bowl from pan. Continue to stir the sauce for about a minute while water in pan cools slightly. Return bowl to pan to keep sauce warm over the hot water (but off the heat), whisking occasionally to prevent a skin forming on the surface of the sauce.
  3. Preheat oven to 450° F. Wrap trimmed asparagus spears in a piece of prosciutto, around the middle. Place on a baking sheet and roast in pre-heated oven for 7-10 minutes, or until tender. Remove from oven. Meanwhile, slice bread and lay on another baking sheet. Once asparagus is removed from the oven, place a rack about 3-inches from the broiler and switch oven to Broil. Toast bread about 3 inches from heat, turning, until golden, about 1 to 2 minutes on each side.
  4. While bread is toasting, add chopped garlic to olive oil and set aside. Once the toast is done, remove from oven and brush top with oil. Top each crostini with asparagus/prosciutto and pour cheese sauce over to serve.
  5. Top with some freshly ground pepper, if desired. (The prosciutto is fairly salty, so additional salt probably isn't necessary).
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  • I just found your site through Pinterest and I’m so happy I did! This recipe for the asparagus sounds so delicious and your photography is gorgeous. I’ll be checking in again! :)

    • Hi Caroline and thanks so much. I loved how simple this recipe was, but oh so delicious. Glad I’ve now discovered your site, as well! Thanks for stopping in.

    • Thanks Laura. And the sauce is exactly the same consistency as hollandaise, but cheesy. It was delicious. (I poured the left-over sauce on some toast later to enjoy more of it ;)

  • Is it time for weekend brunch yet?! This looks so tasty. The sauce sounds absolutely perfect and cheesy and creamy! You know, I alwys enjoy asparagus, but it’s true that it’s perfection this time of year can’t be matched.. the recent bunch I bought was so much better than I’ve ever tasted in asparagus! More flavor, more snap, but more tender, too. I chopped some into my green salad for lunch today. Yum! I need to make this dish!

    • I hope you get a chance to make it, Sophie. It was great. It’s one of those dishes that is so simple, but doesn’t taste like it. Perfect for a lazy Sunday treat.

  • What a perfectly elegant dish. I love brunch-y dishes like this that are simple but still lovely. It also helps that includes cheese sauce. :) Your photography is so beautiful. Planning to make your soft cheesy bread today with all the leftover cheese ends I have lying around. Can’t wait!

    • Thanks so much, Courtney. I love your plan to use up your cheese ends in the cheese bread. It will be delicious, I’m sure!

  • This looks really great. I grew up eating a very similar food: prosciutto wrapper asparagus with parmesan. They were broiled together for snacking perfection. I like the idea of eating it with the toast and cheese sauce, though. Will have to try it!

I love hearing from you, so if you have a question or something isn't quite clear, I'm happy to help. If you made this recipe, I'd love to know how you liked it ~ Jennifer

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