Coca de Vidre — A Mediterranean Crystal of Flavor

Coca de vidre (also known as crystal coca or glass coca) is a jewel of traditional Catalan pastry, celebrated for its extreme delicacy, its crisp texture, and its brilliant glass-like surface created when sugar caramelizes in the oven.

Its name comes precisely from this characteristic. Vidre means “glass” in Catalan, referring to the layer of sugar that melts and crystallizes on top, forming a luminous crust that is almost fragile and breaks with a delicate crunch at the first bite.

This sweet is not a heavy cake nor a fluffy sponge. Instead, it is an elegant demonstration of how a few simple ingredients—flour, olive oil, sugar, and often anise or pine nuts—can become a sublime sensory experience.

The coca, in general, has ancient roots in the Mediterranean basin. The word coca comes from the Germanic term koek, which also gave rise to the English word cake, and entered the Catalan language through medieval cultural exchanges.

According to culinary chronicles, many cocas originated as a way to use bread dough that had not risen properly. Bakers would roll it out very thinly and sprinkle whatever ingredients were available on top—sometimes sugar, sometimes savory elements—before baking.

Coca de vidre, in particular, became a popular sweet in the bakeries of Catalan towns and cities, appreciated for its unique appearance and texture. In some regions it is also known as coca d’anís, because of the traditional finishing touch: a splash of anise liqueur poured over the hot pastry, infusing it with aroma and flavor.

Although it may appear modest compared to festive cocas such as the Sant Joan coca, traditionally enjoyed during the summer solstice celebrations, its thin, crispy form continues to be found in Catalan bakeries and homes, often accompanying mid-morning coffee or afternoon tea.

Today, while modern desserts dominate bakery displays and social media, a quiet movement of bakers, chefs, and traditional food enthusiasts is preserving sweets like coca de vidre. Rather than reinventing them, they celebrate them exactly as they have always been enjoyed: simple, honest, and delicious.

Crunchy like glass—the entire experience of eating it revolves around that thin, fragile layer that resembles crystal.
Traditional aromas—the final touch of anise enhances the flavor and evokes old kitchens where aromatic liqueurs were essential in homemade pastries.
Contemporary versatility—today it is often paired not only with coffee or hot chocolate, but also with fresh ingredients such as figs, strained yogurt, or mint, transforming tradition into a canvas for modern gastronomy.
A recipe for history—renowned bakers reinterpret it with modern techniques and artisanal flours while always honoring its light and crispy essence.

Premium Mediterranean Coca de Vidre Recipe

With Optional Chocolat Coating

A preparation designed to delight the senses and celebrate Catalan culinary tradition.

Ingredients (for 4 pieces)

• 250 g premium bread flour

• 10 g fresh baker’s yeast

• 50 ml warm water

• 75 ml whole milk, warm

• 1 pinch fine salt

• 1 tbsp sugar (for the dough)

• 1 tbsp extra virgin olive oil (for the dough)

• 50 ml extra virgin olive oil (for brushing)

• 50–70 g granulated sugar

• 50 g pine nuts

• 30–50 ml mild anise liqueur

• Optional: orange or lemon zest for extra aroma

• 1 bar dark or milk chocolate for coating half of the cocas

Preparation

Activate the yeast

Dissolve the fresh yeast in warm water and let it rest for a few minutes until light bubbles appear, indicating that the yeast is active.

Prepare the dough

In a large bowl, mix the flour, salt, and tablespoon of sugar. Add the dissolved yeast, warm milk, and olive oil.
Knead for 5–7 minutes until the dough becomes smooth, uniform, and slightly elastic.

First rise

Place the dough in a lightly oiled bowl and cover with a clean cloth. Let it rest in a warm place for 1 hour, until it doubles in size.

Shape the cocas

Divide the dough into four equal portions. Using a rolling pin, stretch each piece as thin as possible—almost translucent.

Brush and decorate

Brush each piece with olive oil. Sprinkle pine nuts and sugar evenly over the surface. Optionally add citrus zest for additional fragrance.

Baking

Preheat the oven to 220 °C (428 °F) with top and bottom heat.
Bake for 12–15 minutes, until the edges are lightly golden and the surface looks shiny and crystalline.

Anise finish

Remove from the oven and, while still hot, lightly drizzle with anise liqueur. This enhances the aroma and intensifies the sugar crystallization.

Chocolat coating

Melt the chocolate using a double boiler until smooth and glossy.
Dip or brush half of the cocas with the melted chocolate and let them cool on baking paper until the coating slightly hardens.

Presentation

Serve the cocas slightly warm with coffee, hot chocolate, or aromatic tea.
Each bite should deliver a delicate crunch, the fragrance of anise, and—on the chocolate versions—a smooth velvety contrast.

Gourmet tip

For a premium experience, pair them with fresh figs, raspberries, or artisanal jam. This enhances the delicacy of the coca and turns a simple snack into a memorable culinary moment.

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