Mushroom & Leek Bread Pudding: A Savory Comfort

I still remember the quiet hum of the kitchen on Christmas morning many years ago. The scent of pine needles mingled with the aroma of slowly sautéing leeks and earthy mushrooms, a comforting symphony that promised a day filled with warmth and good company. It was the first time I made this savory bread pudding, inspired by a familiar face on morning television, and it quickly became a beloved tradition – a dish that felt like a warm hug on a cold day. The slight crispness of the golden-brown top, the creamy interior punctuated with savory bites, and the sheer simplicity of it all… it just felt like Christmas.

Recipe Overview

• Prep Time: 45 minutes
• Cook Time: 45-50 minutes
• Total Time: 1 hour 30-35 minutes
• Servings: 8-10
• Yield: One 13×9 inch gratin dish
• Dietary Type: Vegetarian

Ingredients

• 6 cups country bread, crusts removed and cut into 1/2-inch dice (about 1 pound)
• 2 tablespoons olive oil
• 1 tablespoon unsalted butter
• 2 ounces pancetta, diced small
• 4 cups leeks, white and light green parts only, sliced (about 4 leeks)
• 1 1/2 lbs cremini mushrooms, stems trimmed and 1/4-inch sliced
• 1 tablespoon fresh tarragon leaves, chopped
• 2 tablespoons dry sherry
• Kosher salt, to taste
• Freshly ground black pepper, to taste
• 1/3 cup fresh flat-leaf parsley, minced
• 4 extra-large eggs
• 1 1/2 cups heavy cream
• 1 cup chicken stock, preferably homemade
• 1 1/2 cups Gruyère cheese, divided (6 ounces)

Equipment Needed

• Sheet pan
• Large (12-inch) sauté pan
• Salad spinner
• Large mixing bowl
• Whisk
• 2 1/2- to 3-quart gratin dish (13x9x2 inches)

Instructions

1. Preheat your oven to 350 degrees Fahrenheit (175 degrees Celsius).
2. Spread the diced bread cubes evenly on a sheet pan. Bake for 15 to 20 minutes, or until they are lightly browned and slightly crisp. This step helps to prevent the bread from becoming soggy in the pudding. Set the toasted bread aside to cool slightly.
3. Prepare the leeks: Cut them lengthwise to expose any dirt trapped between the layers. Slice the leeks crosswise into 1/4-inch thick pieces. Place the sliced leeks in a large bowl of cold water and swish them around to remove any remaining grit. Lift the leeks out of the water and transfer them to a salad spinner to thoroughly dry.
4. Prepare the mushrooms: Avoid soaking mushrooms in water, as they will absorb it and become waterlogged. Instead, gently wipe them clean with a clean, damp sponge or paper towel to remove any dirt or debris. Trim the stems and slice the mushrooms into 1/4-inch thick slices.
5. Heat the olive oil and butter in a large (12-inch) sauté pan over medium heat. The butter adds richness, while the olive oil prevents it from burning.
6. Add the diced pancetta to the pan and cook for about 5 minutes, until it starts to brown and crisp, rendering some of its fat. This adds a wonderful salty and savory element to the bread pudding.
7. Stir in the sliced leeks and cook over medium heat for 8 to 10 minutes, until they are tender and softened. Stir occasionally to prevent them from sticking to the pan.
8. Add the sliced mushrooms, chopped tarragon, sherry, 1 tablespoon of kosher salt, and 1 teaspoon of freshly ground black pepper to the pan. Cook for 10 to 12 minutes, stirring occasionally, until most of the liquid released by the mushrooms has evaporated. The sherry adds a subtle sweetness and depth of flavor to the mushroom mixture.
9. Remove the pan from the heat and stir in the minced fresh flat-leaf parsley. The parsley adds a fresh, herbaceous note to the mixture. Set aside to cool slightly.
10. In a large mixing bowl, whisk together the extra-large eggs, heavy cream, chicken stock, and 1 cup of the Gruyère cheese. Make sure the eggs are fully incorporated to ensure a smooth and creamy custard.
11. Add the toasted bread cubes and the mushroom and leek mixture to the egg mixture. Stir well to combine, ensuring that all the bread cubes are coated with the liquid.
12. Let the mixture sit at room temperature for 30 minutes to allow the bread to absorb the liquid. This step is crucial for a moist and cohesive bread pudding. Stir the mixture well again before pouring it into the prepared baking dish.
13. Pour the bread pudding mixture into a 2 1/2- to 3-quart gratin dish (13x9x2 inches). Sprinkle the remaining 1/2 cup of Gruyère cheese evenly over the top.
14. Bake in the preheated oven for 45 to 50 minutes, or until the top is golden brown and the custard is set. A knife inserted into the center should come out mostly clean.
15. Remove the bread pudding from the oven and let it cool slightly before serving. This allows the custard to set further and makes it easier to slice.

Expert Tips & Tricks

• For an extra layer of flavor, try using a mix of different mushroom varieties, such as shiitake, oyster, or maitake.
• If you don’t have pancetta, you can substitute it with bacon or even leave it out for a vegetarian version.
• Don’t overcrowd the pan when sautéing the mushrooms. Cook them in batches if necessary to ensure they brown properly.
• If the top of the bread pudding starts to brown too quickly, you can tent it with foil during the last 15 minutes of baking.
• For a richer flavor, use brioche or challah bread instead of country bread.
• If you want to prepare this bread pudding ahead of time, you can assemble it up to a day in advance and store it in the refrigerator. Add an extra 10-15 minutes to the baking time if baking from cold.

Serving & Storage Suggestions

Serve the Mushroom & Leek Bread Pudding warm as a side dish or a light main course. It pairs well with a simple green salad or roasted vegetables. Leftovers can be stored in an airtight container in the refrigerator for up to 3 days. Reheat gently in the oven or microwave until warmed through. While refrigeration is suggested, this dish can sit at room temperature for up to 2 hours safely. For longer storage, the assembled, unbaked bread pudding can be frozen for up to 1 month. Thaw completely in the refrigerator before baking.

Nutritional Information

Nutrient	Amount per Serving	% Daily Value
Calories	870 kcal	–
Calories from Fat	308 g	35%
Total Fat	34.2 g	52%
Saturated Fat	17.3 g	86%
Cholesterol	192.3 mg	64%
Sodium	1057.5 mg	44%
Total Carbohydrate	108.9 g	36%
Dietary Fiber	5.5 g	21%
Sugars	8.3 g	33%
Protein	34.1 g	68%

Note: Nutritional information is an estimate and may vary depending on specific ingredients and portion sizes.

Variations & Substitutions

• Gluten-Free: Use gluten-free bread for a gluten-free version.
• Dairy-Free: Substitute the heavy cream with a dairy-free alternative like coconut cream or cashew cream. Use a dairy-free cheese substitute or nutritional yeast for a cheesy flavor.
• Vegetarian/Vegan: Omit the pancetta for a vegetarian dish. For a vegan version, also replace the eggs with a flax egg mixture (1 tablespoon ground flaxseed meal mixed with 3 tablespoons of water per egg).
• Seasonal: Add seasonal vegetables like butternut squash, spinach, or asparagus for a variation.

FAQs (Frequently Asked Questions)

Q: Can I make this bread pudding ahead of time?
A: Yes, you can assemble the bread pudding up to a day in advance and store it in the refrigerator. Add an extra 10-15 minutes to the baking time if baking from cold.

Q: Can I freeze the bread pudding?
A: Yes, the assembled, unbaked bread pudding can be frozen for up to 1 month. Thaw completely in the refrigerator before baking.

Q: What if I don’t have Gruyère cheese?
A: You can substitute Gruyère cheese with another similar cheese like Swiss, Emmental, or even a sharp cheddar.

Q: Can I use different types of mushrooms?
A: Absolutely! Feel free to experiment with different mushroom varieties like shiitake, oyster, or maitake for a unique flavor.

Q: Is it necessary to remove the crusts from the bread?
A: Removing the crusts results in a softer bread pudding, but you can leave them on for added texture if you prefer.

Final Thoughts

This Mushroom & Leek Bread Pudding is more than just a recipe; it’s an invitation to create memories and share comforting flavors with loved ones. Whether you’re serving it as a festive side dish or a cozy weeknight meal, I encourage you to try this recipe and make it your own. Don’t hesitate to experiment with different ingredients and variations to suit your taste. Share your creations and feedback – I’d love to hear how it turns out! Pair it with a crisp white wine or a hearty red for a truly unforgettable experience. Happy cooking!