Portobello French Dip with Horseradish Aioli
    DinnerAmerican

    Portobello French Dip with Horseradish Aioli

    These Portobello French Dips are about to change your life! Roasty portobello strips, golden caramelized onions, melted Provolone cheese, zippy horseradish aioli, all piled on a warm, crusty roll.

    Prep Time
    15 min
    Cook Time
    30 min
    Total Time
    45 min
    Servings
    4
    Difficulty
    hard

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    Ingredients

    • 4 piece mushroom caps, sliced into thin strips
    • 2 piece -3 tablespoons olive oil
    • 1 piece -2 teaspoons Montreal steak seasoning (or just a sprinkle of salt and pepper)
    • 2 tbsp butter
    • 1 piece onion, thinly sliced
    • 0.25 cup white wine
    • 1 tbsp Worcestershire (omit for vegetarian / vegan)
    • 1 tbsp soy sauce
    • 2 cups beef or vegetable broth
    • 1 to taste salt, pepper, and a pinch of sugar to taste
    • 0.50 cup mayo
    • 1 tsp horseradish
    • 1 clove garlic, grated
    • 1 to taste pinch of salt
    • 4 piece sourdough rolls, or a baguette cut into 4 sections
    • 1 to taste Provolone cheese slices

    Instructions

    1. 1

      Preheat oven to 450 degrees. Toss mushroom slices with oil and seasoning. Roast for 20-30 minutes. 

    2. 2

      Meanwhile, melt the butter in a large skillet over medium heat. Add onions; saute until softened, then turn the heat down to caramelize the onions for 20 minutes or so, stirring occasionally until they are deep golden brown.

    3. 3

      Add the wine to the onions in the pan. Let it sizzle out. Add the Worcestershire and soy sauce. Add the broth. Simmer until reduced slightly. Pull out the onions with tongs and set aside. Season the au jus to taste.

    4. 4

      Butter the bread if you want. Pile mushrooms on the bread. Cover with cheese. Return to the oven on the same roasting pan for about 5 minutes (enough to toast the bread and melt the cheese). 

    5. 5

      Top the sandwiches with caramelized onions. Give em each a dollop of horseradish aioli. Serve with the au jus for dipping! HOLY MOLY that’s good.

    Nutrition Facts

    Per Serving

    653
    Calories
    19g
    Protein
    46.8g
    Carbs
    43.2g
    Fat

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