Mushroom Puff Pastry Pinwheels (Print Version)

Crispy pinwheels filled with mushrooms, onion, and cheese, baked in golden puff pastry for irresistible flavor.

# Ingredients:

→ Filling

01 - 3 tablespoons olive oil
02 - 1 medium onion, finely diced
03 - 16 ounces mushrooms, finely chopped
04 - 1 tablespoon mayonnaise
05 - 1/4 teaspoon kosher salt
06 - 1/4 teaspoon freshly ground black pepper
07 - 1 clove garlic, minced
08 - 1/2 cup Parmesan cheese, finely grated
09 - 1 to 1 1/2 cups mozzarella cheese, shredded

→ Pastry

10 - 1 package frozen puff pastry sheets, thawed
11 - 1 large egg, beaten (for egg wash)

# Steps:

01 - Preheat the oven to 365°F (185°C) and line a baking sheet with parchment paper.
02 - Heat olive oil in a large skillet over medium-high heat. Add diced onion and sauté until translucent, about 3–4 minutes.
03 - Incorporate chopped mushrooms and cook, stirring often, until all liquid has evaporated and mushrooms are tender, approximately 8–10 minutes.
04 - Reduce heat to low. Stir in mayonnaise, salt, pepper, minced garlic, and grated Parmesan. Cook for 1 minute, then transfer mixture to a bowl and cool slightly.
05 - Roll out each puff pastry sheet on a lightly floured surface to approximately 12 × 16 inches.
06 - Spread the cooled mushroom mixture evenly over the surface of each pastry sheet. Sprinkle shredded mozzarella over the filling.
07 - Starting from a long edge, firmly roll up each pastry sheet into a tight log.
08 - Using a sharp knife, slice each log into 1-inch thick rounds and arrange them flat on the prepared baking sheet.
09 - Brush the tops of the pinwheels with the beaten egg to create a golden crust.
10 - Bake on the center rack for 30–40 minutes, or until the pastry is golden brown and the centers are set.
11 - Remove from oven and allow to cool for several minutes before serving warm.

# Notes:

01 - For best results, ensure that the mushroom filling is completely cooled before spreading over the pastry to prevent sogginess.