Duchesse Mashed Potato Mushroom Puff

Elevate your appetizer game with the irresistibly flaky and savory Duchesse Mashed Potato Mushroom Puff. This recipe combines pillowy duchesse-style mashed potatoes — enhanced with rich Parmesan, creamy butter, and a hint of nutmeg — with a robust mushroom filling featuring sautéed cremini mushrooms, fragrant shallots, garlic, and fresh thyme. Encased in golden, buttery puff pastry, these elegant puffs are perfect for entertaining or serving as a crowd-pleasing side dish. With a crispy exterior and a melt-in-your-mouth center, these decadent bites delight on both flavor and texture. Simple yet gourmet, they are guaranteed to impress.

Nutriscore Rating: 66/100

Prep Time:45 mins

Cook Time:25 mins

Total Time:70 mins

Servings: 8

Ingredients

• 4 medium Russet potatoes
• 4 tablespoons Unsalted butter
• 0.25 cup Heavy cream
• 0.33 cup Parmesan cheese, grated
• 2 large Egg yolk
• 1 teaspoon Salt
• 0.5 teaspoon Black pepper
• 8 ounces Cremini mushrooms
• 1 small Shallot, minced
• 2 cloves Garlic, minced
• 1 tablespoon Olive oil
• 1 teaspoon Thyme, fresh
• 2 sheets Puff pastry sheets, thawed
• 1 large Egg wash (1 egg whisked with 1 tablespoon water)

Directions

Step 1

Peel and dice the russet potatoes into chunks. Place them in a pot of salted water and bring to a boil. Cook until fork-tender, about 15-20 minutes.

Step 2

Drain the potatoes and return them to the pot. Mash them until smooth.

Step 3

Add butter, heavy cream, Parmesan cheese, egg yolks, salt, and black pepper to the mashed potatoes. Mix well until light and creamy. Set aside to cool slightly.

Step 4

For the mushroom filling, clean and dice the cremini mushrooms into small pieces.

Step 5

Heat olive oil in a skillet over medium heat. Add the minced shallot and garlic, sautéing until fragrant, about 1 minute.

Step 6

Add the mushrooms and thyme to the skillet. Cook until the mushrooms release their moisture and become golden brown, about 6-8 minutes. Season with a pinch of salt and pepper. Remove from heat and let the mixture cool.

Step 7

Preheat your oven to 400°F (200°C). Line a baking sheet with parchment paper.

Step 8

Roll out the puff pastry sheets on a lightly floured surface. Cut into 4x4-inch squares (approximately 8 squares per sheet).

Step 9

Place a small scoop of the mashed potato mixture in the center of each pastry square. Top the mashed potatoes with a spoonful of the mushroom filling.

Step 10

Brush the edges of the pastry squares with egg wash. Fold each square into a triangle, pressing the edges firmly to seal. Crimp edges with a fork for decoration, if desired.

Step 11

Transfer the puffs to the prepared baking sheet. Brush the tops with egg wash for a golden finish.

Step 12

Bake in the preheated oven for 18-22 minutes, or until the pastry is puffed and golden brown.

Step 13

Remove from the oven and let cool for 5 minutes before serving. Serve warm as an appetizer or side dish.

Nutrition Facts

Serving size	(1302.8g)

Amount per serving	% Daily Value*
Calories	2323.5

Total Fat 141.7g	0%
Saturated Fat 61.7g	0%
Polyunsaturated Fat 1.3g
Cholesterol 765.4mg	0%
Sodium 3405.6mg	0%
Total Carbohydrate 214.6g	0%
Dietary Fiber 18.0g	0%
Total Sugars 16.4g
Protein 55.5g	0%

Vitamin D 93.3IU	0%
Calcium 553.9mg	0%
Iron 14.4mg	0%
Potassium 5202.2mg	0%

*The % Daily Value tells you how much a nutrient in a serving of food contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.

Source of Calories

Fat: 54.1%

Protein: 9.4%

Carbs: 36.4%