White Asparagus à la Grenobloise

This simple starter of White Asparagus à la Grenobloise is a French Spring classic. Tender and slightly sweet white asparagus, which are incredibly popular in France, are doused with a tangy Grenobloise sauce of butter, lemon, capers, parsley and crunchy croutons.

This delightful dish is on the table in just 20 minutes, making the most of asparagus season.

What is a Grenobloise sauce?

A Grenobloise sauce, as its name suggests, is a specialty hailing from the French town of Grenoble. This classic French sauce is made of brown butter, lemon, capers, fresh parsley and croutons.

It is a buttery and tangy sauce that is often served with white fish (sole, skate fish, cod or salmon), seafood (scallops, shrimps) and to spruce up seasonal white asparagus – one of my favorite ways to enjoy it!

Making brown butter (beurre-noisette)

Known in French as “beurre-noisette”, brown butter is one of the key components of a Grenobloise sauce. So, let’s take a moment to discuss it… 

Brown butter is melted butter, with an improved flavor brought on by gently cooking it until it reaches a golden-brown color. Used regularly in both French cooking (sauces, etc.) and baking (financiers, madeleines, etc.), brown butter gives delectable nutty flavors to any recipe. It’s important you take the time to make brown butter properly for this recipe. Do not skip this step, you won’t regret it. 

For the butter, try and find a European-style one with a higher fat content than typical US/Canadian butters. 

How to make brown-butter (beurre-noisette)

1. In a small saucepan, melt your butter over medium-low heat, whisking frequently. Once all melted, the butter will start to simmer and foam. This takes 3-4 minutes. 
2. Eventually the butter will stop foaming. Keep a close eye on it and watch for golden specks to form at the bottom of the pan. Smell the butter for nutty aromas. This should take about 4-5 minutes.
3. Remove from the heat and pour the butter into a cold bowl to stop the cooking process. For this Grenobloise sauce, instead of pouring the butter into a bowl, cold lemon juice is added to the pan, which stops the cooking process as well.

Be careful, as it’s easy to go from brown-butter to burnt-butter. If you think you’ve over-cooked or burned the butter, do not overthink it. Dump it and start again. Burnt butter is terrible for your health and tastes just as bad.

White asparagus at my local farmers’ market in Brittany, France.

How to store (uncooked) asparagus?

I think asparagus always taste better when you cook them the day you buy them. Asparagus are indeed a flowering plant, which are quite delicate and more impacted by passing time than your regular vegetable.

If you are not planning on cooking your asparagus the day you buy them, you can always store them just like cut flowers. Cut off one inch from the bottoms and place the stems in a large glass or vase, with water at the bottom. For optimum storage, cover the tops with a small plastic bag and place in the fridge.

For more details on how to store asparagus so they stay fresh and crisp, I recommend this article from the blog Foolproof living. It gives instructions for short-term storage (1-2 days) and long-term storage (up to 5 days).

How to peel asparagus?

The first step to enjoying asparagus, either green or white, is to peel them. Especially for white asparagus which are very fibrous. Peeling them is a must!

To do so, use a vegetable peeler and remove the peel starting from the base of the tip to the bottom of the spear. The asparagus head remains untouched.

White asparagus are usually thick and strong enough that you don’t need to worry about breaking them. For thinner green asparagus, you can place the asparagus over your hand to support them while peeling and make sure they won’t break.

Can I prepare this dish ahead of time?

To save time, you can prepare and cook the asparagus hours ahead and simply let the asparagus rest covered in a plate. Before serving, you can prepare the Grenobloise sauce and then place it over top your asparagus. The sauce should not be made in advance.

How to store leftovers?  

After making and enjoying White Asparagus à la Grenobloise– if you have any leftovers – you can store them in the refrigerator.

Let the dish cool completely and store it in an airtight container in the fridge for up to 3 days. Enjoy leftovers cold or reheat your portions in the microwave.

Notes:

• Use Organic Lemons. Because we are using zest from the peels, I recommend to use organic lemons which are pesticide free.
• Curly or flat parsley both work well for a Grenobloise sauce.

I hope you’ll love this White Asparagus à la Grenobloise recipe as much as I do! If you have any questions, please leave a comment. 

More French starter recipes you may like: 

• Green asparagus with Gribiche Sauce 
• Classic French Salmon Rillettes
• Roasted Red Pepper Dip (Poivronade) 
• French Cheese Puffs (Gougeres)
• Leeks with Dijon Shallots Vinaigrettes (Poireaux Vinaigrette) 
• French-Style Potato Salad 

White Asparagus à la Grenobloise

Print Recipe

Serves: 4 Prep Time: 5 Minutes Cooking Time: 15 Minutes 15 Minutes

Nutrition facts: 200 calories 20 grams fat

Rating: 5.0/5

( 2 voted )

Ingredients

About 20 white asparagus
¼ tsp salt
1/3 cup (76g) unsalted butter
1/2 cup cubed day-old bread, such as a baguette, or any French or Italian crusty loaf
¼ tsp salt
1 lemon, zested and juiced
5 tbsp (about 37.5g) mini capers
6-7 sprigs curly parsley, stemmed and chopped.
¼ tsp freshly ground black pepper 

Instructions

Step 1 – Peel the asparagus using a vegetable peeler (see above instructions) and snap the woody ends off the base (about 2 inches).

Step 2 - Add the asparagus to a pan of boiling water with salt. Simmer for 10-12 minutes.

Step 3 – In the meantime, prepare the Grenobloise sauce. Drain the capers and set aside on a paper towel.

Step 4 – Cut the bread into small cubes. Heat up a large frying pan over medium-heat up with 1 ½ tbsp (20g) butter, the bread and salt. When the butter starts sizzling, continue cooking, stirring frequently, until the bread cubs are golden, about 3 to 5 minutes. Remove from the pan. The croutons will crisp up as they cool.

Step 5 – Add the rest of the butter to the pan, on medium-heat. When it turns “noisette” (see instructions above in the article), turn off the heat and add the lemon juice, zest, capers and parsley. Stir.

Step 6 – Drain the asparagus and place them onto a serving dish. Pour the butter and lemon sauce over top and sprinkle with the croutons. Season with black pepper and serve immediately.