Directions

1. Preparing the Pastry:

   Combine the whole wheat flour, salt, and cold cubed butter in a food processor. Pulse until the mixture looks like coarse breadcrumbs.

   Gradually add the sour cream while pulsing the mixture, just until the dough comes together. If the dough looks too dry, sprinkle a tablespoon of cold water and pulse again.

   Transfer the dough onto a lightly floured surface and shape it into a disc. Wrap in cling film and refrigerate for at least 30 minutes.

2. Preparing the Filling:

   In a large skillet, heat 15 ml of olive oil and 30g of butter over medium-high heat. Once the butter has melted, add the sliced mushrooms. Sauté the mushrooms until they release their moisture and turn golden-brown.

   Season the mushrooms with salt and pepper, then transfer them to a bowl and set aside.

   Using the same skillet, add the remaining 15 ml of olive oil and 30g of butter. When the butter melts, add the finely sliced leek, crushed garlic, bay leaves, and thyme leaves. Sauté on low heat until the leek becomes soft and translucent.

   Remove the bay leaves and combine the leek mixture with the sautéed mushrooms. Let the mixture cool down.

   Stir in the chopped parsley, grated gruyere, and season with more salt and pepper if needed.

3. Assembling the Galette:

   Preheat your oven to 190°C.

   Roll out the chilled pastry dough on a floured surface into a circle approximately 3mm thick.

   Spread the soft goat cheese evenly in the center of the rolled-out dough, leaving a 3cm border.

   Spoon the cooled mushroom mixture over the goat cheese layer.

   Gently fold the edges of the pastry dough towards the center, overlapping slightly, to encase the mushroom filling partially.

   Brush the folded pastry edges with the beaten egg to give a glossy golden finish during baking.

4. Baking the Galette:

   Place the assembled galette on a parchment-lined baking sheet.

   Bake in the preheated oven for about 20 minutes or until the pastry turns a beautiful golden brown.

   Serve your delightful Mushroom Galette hot for a hearty meal or let it cool and enjoy a sumptuous summer treat!