Description
Ruth’s Chris Mushroom & Gruyère Tart is a sophisticated appetizer featuring flaky puff pastry topped with sautéed mushrooms, shallots, and rich Gruyère cheese. Quick to prepare, it delivers steakhouse-style elegance in a simple homemade tart.
Ingredients
- 1 sheet puff pastry, thawed
- 2 tablespoons olive oil
- 2 tablespoons butter
- 8 ounces cremini or button mushrooms, thinly sliced
- 1 small shallot, finely chopped
- 2 cloves garlic, minced
- 1 teaspoon fresh thyme leaves (or ½ teaspoon dried thyme)
- ½ teaspoon salt
- ¼ teaspoon black pepper
- ¾ cup shredded Gruyère cheese
- 2 tablespoons grated Parmesan cheese
- 1 tablespoon heavy cream
- 1 teaspoon Dijon mustard
- 1 egg, beaten (for egg wash)
- 1 tablespoon chopped fresh parsley for garnish
Instructions
- Preheat oven to 400°F (200°C) and line a baking sheet with parchment paper.
- Roll out puff pastry slightly on a floured surface. Place on prepared baking sheet and score a ½-inch border around edges.
- In a skillet over medium heat, heat olive oil and butter. Add mushrooms and cook 6–8 minutes until moisture evaporates and they begin to brown.
- Add shallot and cook 2 minutes. Stir in garlic, thyme, salt, and pepper; cook 1 minute. Remove from heat and let cool slightly.
- Mix Dijon mustard and heavy cream; spread over the center of puff pastry inside the scored border.
- Sprinkle half of Gruyère over mustard layer, then layer mushrooms evenly. Top with remaining Gruyère and Parmesan cheese.
- Brush pastry edges with beaten egg.
- Bake 18–22 minutes until pastry is golden and cheese is melted.
- Cool a few minutes, garnish with parsley, and slice into 6 portions.
Notes
- Caramelized Onion Version: Add thinly sliced onion and cook slowly with mushrooms for extra sweetness.
- Herb Upgrade: Mix fresh herbs like parsley and chives with thyme for aromatic flavor.
- Extra Creamy: Add ricotta or cream cheese under mushrooms for richer filling.
- Mixed Mushrooms: Combine cremini, shiitake, and oyster mushrooms for deeper flavor.
- Garlic Lovers: Increase garlic cloves to enhance savory aroma.
- Prep Time: 15 minutes
- Cook Time: 20 minutes
- Category: undefined
- Method: Baking / Sautéing
- Cuisine: French / Steakhouse-inspired
Nutrition
- Serving Size: undefined
- Calories: 250 kcal per slice
- Sugar: 2 g
- Sodium: 300 mg
- Fat: 16 g
- Saturated Fat: 9 g
- Unsaturated Fat: undefined
- Trans Fat: undefined
- Carbohydrates: 18 g
- Fiber: 1 g
- Protein: 10 g
- Cholesterol: 50 mg
