Viral Mushroom Wellington
Golden puff pastry sliced to reveal rich duxelles, wilted spinach and roasted portobello — the vegetarian Christmas main that steals the show.
In a nutshell: This authentic british viral mushroom wellington comes together in just 1 hr 15 mins using simple whole ingredients. The chef's secret: any leftover mushroom water turns the pastry soggy from the inside, no matter how hot the. Perfect for home cooks seeking a dependable, restaurant-quality finish with minimal effort.
Viral mushroom Wellington: golden puff pastry over rich mushroom duxelles, spinach and portobello. A showstopping vegetarian Christmas main.
Key Equipment
As an Amazon Associate I earn from qualifying purchases.
- Baking sheet
- Food processor
- Large skillet
- Parchment paper
Chef's Pro-Tips
- Cook the duxelles until truly dry: any leftover mushroom water turns the pastry soggy from the inside, no matter how hot the oven.
- Squeeze the spinach bone-dry: spinach holds a surprising amount of water, and one wet handful undoes all the duxelles work.
- Rest before slicing: 10 minutes lets the filling set so the famous cross-section holds instead of sliding out.
Ingredients
6
servings
-
4 portobello mushrooms, large, stems removed
-
1 lb mixed mushrooms, cremini and shiitake, roughly chopped
-
1 yellow onion, diced
-
3 cloves garlic, minced
-
2 tbsp butter
-
1 tbsp olive oil
-
2 tsp fresh thyme, leaves
-
2 tbsp soy sauce
-
4 cups baby spinach
-
½ cup walnuts, toasted and chopped, optional
-
1 sheet puff pastry, thawed
-
1 egg, beaten, for egg wash
-
1 tsp Dijon mustard
-
½ tsp black pepper
The Smart Meal Planner & Grocery Calculator
Interactive Google Sheets & Excel system with auto-generating grocery lists, macro calculations, and 50 pre-loaded recipes.
Step-by-Step Instructions
Roast the Portobellos
Preheat the oven to 400°F (200°C). Brush the portobellos with oil, season, and roast gill-side up for 15 minutes. Drain any liquid and set aside to cool.
Cook the Duxelles Dry
Pulse the mixed mushrooms in a food processor until finely chopped. Cook with the onion, garlic, butter and thyme in a dry-ish skillet over medium-high heat for 12-15 minutes, stirring, until all the moisture has evaporated and the mixture is dark and paste-like. Stir in the soy sauce.
Wilt the Spinach
Wilt the spinach in the same skillet with a splash of water, then squeeze completely dry in a towel. Stir it into the duxelles with the walnuts, if using.
Assemble the Wellington
Lay the puff pastry on parchment. Brush the centre with Dijon, spread half the duxelles, arrange the portobellos in a row, and top with the remaining duxelles. Fold the pastry over, seal the edges, and score the top lightly.
Bake and Rest
Brush with egg wash and bake for 30-35 minutes, until deeply golden and puffed. Rest for 10 minutes before slicing with a serrated knife.
Chef Clara's Kitchen Picks
Kitchen EssentialsAs an Amazon Associate I earn from qualifying purchases.
Nordic Ware Naturals Half Sheet, 2-Pack
Warp-resistant aluminum for even browning, from sheet-pan dinners to cookies.
View on AmazonVictorinox Fibrox Pro 8" Chef's Knife
Razor-sharp Fibrox Pro blade that home chefs and pros both reach for.
View on AmazonTILUCK Stainless Measuring Cups & Spoons, 10-Pc
Stainless steel cups and spoons that measure precisely and last.
View on AmazonMercer Culinary Locking Tongs, 9" + 12"
Locking tongs in two handy sizes for the stovetop and the grill.
View on AmazonAmazon Basics Non-Stick Parchment Paper Roll
Non-stick paper for lining pans – easy release, easy cleanup.
View on AmazonWoodenhouse Teak Wooden Spoons, 10-Pc
Teak spoons gentle on cookware and built for daily stirring.
View on AmazonOXO Good Grips Silicone Whisk Set, 9" + 11"
Silicone whisks safe for nonstick pans, in two sizes.
View on AmazonUltra Cuisine Stainless Cooling Rack Set of 2
Stainless racks that fit half sheets – for cooling bakes and crisping roasts.
View on AmazonUmite Chef Stainless Mixing Bowls with Lids, 8-Pc
Nesting stainless bowls with airtight lids, from prep to storage.
View on AmazonHamilton Beach 6-Speed Electric Hand Mixer
Six speeds with a snap-on storage case for the beaters.
View on AmazonFrequently Asked Questions
Yes — assemble up to a day ahead, cover and refrigerate. Bake straight from the fridge, adding 5 minutes to the time.
As written it uses butter and egg wash. Swap in vegan butter and a plant-milk wash, and check the pastry is vegan, for a fully vegan version.
A simple red wine gravy or mushroom cream sauce is ideal. It is also excellent on its own — the duxelles are rich enough.
Yes — freeze unbaked for up to 1 month. Bake straight from frozen at 375°F for 45-50 minutes, tenting with foil if it browns too fast.
Viral TikTok Sesame Ramen
Ditch the soup packet! This viral TikTok ramen features instant noodles tossed in a rich glaze made of...
View Recipe
Viral Baked Feta Cherry Tomato Pasta
This is the internet-breaking baked feta pasta recipe.
View Recipe
Creamy Tuscan White Bean and Sun-Dried Tomato Skillet
A comforting 20-minute vegetarian Mediterranean dinner! Creamy cannellini beans absorb a luxurious sauce...
View Recipe