Savory Mushroom & Gruyère Puff Pastry Braid

Prep Time: 25 minutes
Cook Time: 30-35 minutes
Total Time: 55-60 minutes
Servings: 6-8 as a main, 10-12 as an appetizer

Difficulty: Medium (The technique looks fancy but is simple to execute!)

Ingredients

• 1 sheet frozen puff pastry (like Pepperidge Farm), thawed but still cold

• 2 tablespoons unsalted butter

• 1 tablespoon olive oil

• 1 lb (450g) mixed mushrooms (such as cremini, shiitake, and oyster), finely chopped

• 2 large shallots, finely chopped

• 2 cloves garlic, minced

• 1 tablespoon fresh thyme leaves (or 1 tsp dried)

• ½ teaspoon salt

• ¼ teaspoon black pepper

• ¼ cup dry white wine or sherry (optional, but recommended)

• ⅓ cup crème fraîche or full-fat sour cream

• 1 cup (about 3 oz or 85g) Gruyère cheese, grated

• 1 large egg, beaten (for egg wash)

• 1 tablespoon sesame seeds or poppy seeds (optional, for topping)

• Flaky sea salt, for finishing (optional)

Instructions

1. Prepare the Mushroom Filling: In a large skillet or sauté pan, melt the butter and olive oil over medium-high heat. Add the finely chopped mushrooms and spread them in an even layer. Let them cook undisturbed for 4-5 minutes to allow them to release their moisture and brown. Stir and continue cooking for another 5-7 minutes, until the mushrooms are deeply browned and most of the liquid has evaporated.

2. Aromatics & Deglaze: Add the chopped shallots to the pan and cook for 2-3 minutes until softened. Stir in the garlic and thyme and cook for another minute until fragrant.

3. Finish the Filling: If using, pour in the white wine (or sherry) and scrape up any browned bits from the bottom of the pan. Cook for 1-2 minutes, until the liquid is nearly gone. Remove the pan from the heat. Stir in the crème fraîche and grated Gruyère cheese. Season with salt and pepper. Taste and adjust seasoning as needed. Transfer the filling to a bowl and let it cool completely. (Tip: Cooling the filling is crucial—if it’s warm, it will melt the butter in the puff pastry and make it soggy.)

4. Preheat & Prep: Preheat your oven to 400°F (200°C). Line a large baking sheet with parchment paper.

5. Roll the Pastry: On a lightly floured surface, gently roll out the puff pastry sheet just slightly to smooth the seams. You’re aiming for a rectangle roughly 10×14 inches. Carefully transfer the pastry to the prepared baking sheet.

6. Assemble the Braid: Imagine the pastry rectangle divided into three equal sections lengthwise.

   • Spoon the cooled mushroom filling down the center third of the pastry, leaving about 1 inch of space at the top and bottom.

   • Using a sharp knife or pizza cutter, cut 1-inch wide strips diagonally from the edges of the filling to the edge of the pastry on both the left and right sides. You should have an equal number of strips on each side.

   • To create the braid, fold the top and bottom flaps over the filling to seal the ends. Then, starting at the top, lift one strip from the left side and gently lay it across the filling at a slight angle. Take the corresponding strip from the right side and lay it over the filling, crossing over the first strip. Continue alternating strips from left to right, tucking the last strips underneath the braid at the bottom.

7. Egg Wash & Bake: Brush the entire surface of the pastry braid with the beaten egg. If using, sprinkle with sesame seeds or poppy seeds and a pinch of flaky sea salt. Using a sharp knife, cut 3-4 small slits on the top of the braid to allow steam to escape.

8. Bake: Place the baking sheet in the preheated oven and bake for 25-30 minutes, or until the pastry is puffed up and deeply golden brown.

9. Cool & Serve: Let the braid cool on the baking sheet for at least 5-10 minutes before transferring to a cutting board. This allows the filling to set slightly. Slice and serve warm or at room temperature.

Tips for the Best Results

• Don’t skip cooling the filling. This is the most important step for a crisp, non-soggy bottom.

• Work with cold pastry. If the puff pastry gets too warm and sticky, pop it in the fridge for 10 minutes before braiding.

• Get a good sear on the mushrooms. High heat and not overcrowding the pan are key for developing that deep, meaty, umami flavor. Browning equals flavor!

• Make it your own. Swap the Gruyère for fontina, sharp cheddar, or even goat cheese. Add a handful of fresh spinach to the filling at the end and wilt before adding the cheese.

Nutrition Information

The following nutrition information is an estimate and provided as a courtesy. It is calculated using an online nutrition calculator and standard ingredient databases. Actual values may vary depending on specific brands, ingredients used, and portion sizes.

Serving Size: 1 slice (based on 8 servings)