Culinary Travel: Ham Cooked in Asphalt

You may have heard about trying to fry an egg on asphalt when it’s really hot outside? Well, I had no idea that people were routinely using asphalt to prepare food until a recent visit to the Mines d’asphalte in Suisse Romande. My family and I discovered a traditional Swiss dish there—ham cooked in a bath of molten asphalt.

Asphalt Mines
Museum and café at the Mines d’asphalte of La Presta in Val-de-Travers

Asphalt Mines

Natural asphalt deposits were discovered in Val-de-Travers back in 1711 by Eirini Eyrinys, a physician interested in using it for medicinal purposes. The asphalt mines were then developed for more industrial uses during the 19th century, in response to the growing need for road construction in Europe and elsewhere.

Over the years, industrial asphalt—a byproduct of processing petroleum—could be produced more cheaply than mining natural asphalt. This eventually led to the closure of the mine in 1986. Today, the Mines d’asphalte operates as a museum, giving visitors a firsthand look at the working conditions in the underground mine.

asphalt mine entrance
An entrance to the underground corridors of the Mines d’asphalte

Even though there are about 100 kilometers of underground corridors at the Mines d’asphalte, only about one kilometer is currently open to the public. When you travel through the caves, the museum will provide you with a hard hat. And, be sure to wear warm clothes, as the temperature dips to about 8°C (46°F) in the mines.

Before or after your tour, I recommend stopping by the Café des Mines next to the museum for a meal or snack.

Jambon cuit dans l’asphalte

From everything I’ve read, Val-de-Travers is the only place in Switzerland where you can try jambon cuits dans l’asphalte (ham cooked in asphalt).

jambon in asphalt
Jambon cuit dans l’asphalte, haricots verts and gratin dauphinois

Ham cooked in asphalt was first served to miners to celebrate St. Barbara’s Day (the patron saint of miners) on December 4, 1935. To prepare the ham, it’s wrapped in newspaper or butcher paper, and then covered with a flour sack. Next, the ham cooks for about four hours at approximately 160-170°C (320-340°F) in molten asphalt. This cooking method, which may seem unconventional, helps to preserve moisture in the ham.

The tradition of cooking ham in asphalt continues today, as visitors to Café des Mines can order a plate of ham, green beans and gratin dauphinois. While the ham doesn’t (thankfully) taste like asphalt, it does have a unique flavor. I certainly detected a slight scent of asphalt (although my husband and sons disagree!). To accompany our Sunday dinner, we had a bottle of BFM’s (La Brasserie des Franches-Montagnes) Bière de la Sainte-Barbe, an amber ale with smoked tea prepared exclusively for the Mines d’asphalte.

Small mural above the Café des Mines

Utter darkness, an intriguing history and a lot of ham—the Mines d’asphalte is an interesting place to visit. You can take a tour in French or German (and also English and Italian, but contact the museum in advance to schedule your visit). If you have time, check out the Maison de l’absinthe in nearby Motiers as well.

How to get there:

From Neuchâtel station, it takes about 35 minutes by train to La Presta Mines d’asphalte station. See SBB/CFF/FFS, for details.

More information:

Updated: December 28, 2022

7 replies »

    • Lucy, I know – strange, isn’t it? I almost added “(Really!)” to the title of this post. I may still need to change it! 🙂 Thanks for visiting my blog. Hope you’re enjoying the last few weeks of summer.

      • I’m really enjoying a little window into swiss food that I’m getting from your blog! Sadly it’s been raining here for weeks so summer seems well and truly over. I hear from a friend in Switzerland that it’s boiling over there – it must be stunning with hot weather, green pastures and snow capped mountains x

      • Thanks so much, Lucy! Yes – still very hot here, although it’s supposed to change tomorrow. It’s been dry, so some of those green pastures sadly look a little brown… Enjoy the final weeks of summer. Hope you get another shot at warm weather before it’s over! 🙂

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