Preheat your oven to 375°F (190°C). Line a baking tray with parchment paper or lightly grease it.
Use a damp paper towel to gently clean the mushrooms. Do not soak them in water.
Carefully remove the stems using a small knife. You can save the stems for soup or stock.
Fill each mushroom cap with herb pub cheese. Make sure the filling reaches close to the top.
Arrange the stuffed mushrooms on the baking tray.
In a bowl, mix:
Grated Parmesan
Chopped Provolone
Half and half
Microwave for about 25 seconds until slightly melted. Stir in the panko breadcrumbs.
Let the mixture cool slightly. It will become thicker and easier to handle.
Spread this mixture evenly over each stuffed mushroom.
Bake in the preheated oven for 18–20 minutes or until:
The mushrooms are tender
The tops are golden brown
The cheese is melted and bubbly
Remove from the oven and set aside.
In a mixing bowl, combine:
Mayonnaise
Half and half
Dry white wine
Worcestershire sauce
Dry mustard
Black pepper
Set aside.
Using a double boiler over simmering water, heat the mixture gently for about 15–20 minutes.
Gradually add the white cheddar cheese (tossed in flour) and stir continuously until smooth and creamy.
Remove from heat.
You can serve this Longhorn stuffed mushroom recipe in three ways:
Spread sauce on a serving plate and place mushrooms on top
Drizzle sauce over mushrooms
Serve sauce in small ramekins for dipping
Serve warm for best taste.