Tarte aux pralines

What it is

The tarte aux pralines is a sweet tart from the city of Lyon, in the Auvergne-Rhône-Alpes region. It is one of the few desserts that acts as a direct map to its home; while similar almond pastries exist elsewhere, this specific tart belongs firmly to Lyon. It is strikingly bright pink, a colour that comes from the red-tinted sugar coating of the almonds used to make it.

The tart sits in a shortcrust case, baked until golden and crisp. Inside lies a thick, glossy filling made from crushed pralines cooked with cream. Cut open, the texture is dense yet soft, with crunchy almond pieces suspended in a sweet, fudge-like base.

The name refers directly to the key ingredient: pralines. In Lyon, these are not the soft, creamy confections found in some other countries. They are whole almonds coated in layers of cooked sugar until hard and crunchy, tinted a vivid pink. The tart takes this hard candy, crushes it into small chunks, and melts it with cream to create a filling that sets as it cools.

The origin of the Lyonnais praline

Sugar-coated almonds have a long history in France. The praline is commonly said to come from Montargis, in the Loiret, and its name is traditionally linked to the 17th-century Duke of Praslin, whose cook is credited with the sweet. Those early pralines were caramel-coloured rather than pink.

How they turned pink is not fully documented. Confectioners in the Lyon area came to tint the sugar syrup red, traditionally with cochineal, and the bright pralines roses became a staple of the region's markets and pâtisseries. By the early 20th century they were used in the Savoyard brioche of Saint-Genix, and the tart followed later.

The tarte aux pralines is younger than its reputation suggests. A popular story credits the chef Alain Chapel, from the Ain, with reviving and popularising it in the 1970s, when Lyon's bouchons were looking for a sweet finale for their meals. Since then it has become an emblem of the city.

How it is made

The preparation relies on the specific character of the Lyonnais praline. Whole almonds are coated in sugar syrup, layer by layer, until the coating hardens into a crunchy shell. In the Lyon area, the syrup is coloured red, giving the final product its signature hue. These hard pralines are sold by the bag in the city's shops and markets.

To make the tart, the pralines are roughly crushed. They are then cooked with cream until the sugar melts and the mixture thickens into a smooth, homogeneous filling. The sweetness is intense, balanced by the nuttiness of the almonds.

Once the filling is ready, it is poured into a pre-baked shortcrust case. The pastry is usually thin and crisp, providing a sturdy base for the heavy, sweet filling. The tart is then left to cool and set, usually in the refrigerator, so that the filling becomes firm enough to slice cleanly. Some cooks prefer it served slightly warm, when the filling is softer.

How it is eaten

The tarte aux pralines is not a dish for a large plate or a quick bite. It is intensely sweet and rich, meant to be eaten in small slices.

The usual accompaniment is coffee. A strong black coffee or an espresso cuts through the sweetness of the praline filling and refreshes the palate between bites. In a Lyon pâtisserie, it is common to see a slice of the tart taken with a cup of coffee.

The tart appears most frequently in two types of establishment. A pâtisserie will sell it by the slice or as a whole tart to take away. It also features on the dessert menus of bouchons, the traditional Lyon eateries known for their hearty food and local wines. In these settings, the tart serves as a sweet conclusion to a meal that might otherwise be quite savoury and substantial.

A brioche version exists

The same pink pralines also go into brioche. In Lyon, many bakeries sell a brioche aux pralines, studded with pieces of pink praline that partly melt into the dough as it bakes. The best-known version is the praluline, created in Roanne in 1955.

These brioches offer a different texture. Instead of a crisp shortcrust case and a creamy filling, the pralines are baked into a soft, buttery bread. While the tarte aux pralines remains the primary symbol of the city's sweet tradition, the brioche provides a lighter, bready alternative.

Curious facts

• The colour comes from the sugar. The pink hue comes from the red-tinted sugar coating of the almonds, traditionally coloured with cochineal.
• It is a regional speciality. While other French cities have almond tarts, the tarte aux pralines is tied to Lyon and its pink pralines.
• The pralines are hard candy. Unlike soft or chocolate-based pralines found elsewhere, the Lyonnais praline is a hard, crunchy confection that is melted down for the tart filling.
• Younger than it looks. Despite its status as a Lyon emblem, the tart as it is known today was popularised only in the second half of the 20th century.
• The brioche variant is separate. Praline brioches, such as the praluline from Roanne, use the same pralines in soft bread rather than a shortcrust case.
• It suits strong coffee. The intense sweetness of the praline is well balanced by the bitterness of a strong coffee.

Where to try it

The tarte aux pralines is found in abundance in Lyon and its surrounding area. The best versions appear in a traditional pâtisserie or a bouchon. In the city centre, on the Presqu'île, many shops sell the tart, whole or by the slice.

The markets of the Croix-Rousse also offer a glimpse into the ingredients. Here, vendors sell bags of the pink pralines whole, showing the almonds before they are transformed into a tart.

It is available year-round in most establishments that specialise in sweet pastries.