Gruyere, Mushroom & Caramelized Onion Bites

Gruyere, Mushroom & Caramelized Onion Bites

delicious party canapé

Reviewed by Arturs Arnicans
Prep Time: 55m
Cook Time: 20m
Total Time: 1h 15m
Temp.: 400 °F
Servings: 30
Difficulty: Easy
4.8 (11 Reviews)
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Ingredients

Adjust servings:

Nutritional Information

137
Calories
10.1g
Fat
14mg
Cholesterol
68mg
Sodium
8.8g
Carbohydrate
2.8g
Protein
Gruyere, Mushroom & Caramelized Onion Bites

Recipe Description

These Gruyere, Mushroom & Caramelized Onion Bites make a delicious Christmas side dish or they are perfect to serve as a canapé at any party you might be hosting this year. This is right at the top of my list of favorite Christmas side dish recipes. Everyone in my family adores these tasty little bites.

To make these bites, start by sautéing mushrooms in oil and butter. Remove the mushrooms from the heat and sauté onions. Add sugar and leave the onions to caramelize slowly. Mix onions and mushrooms together. Add cheese and leave to cool to room temperature. Prepare the pastry by slicing puff pastry into squares. Make sure the puff pastry is cold when you top it with the mixture and before it goes into the oven. If the pastry is not chilled, it may not puff up when cooking. Bake the topped pastry squares in the oven until golden.

To make my Gruyere, Mushroom & Caramelized Onion Bites, you will need the following ingredients:

Ingredients for Gruyere, Mushroom & Caramelized Onion Bites

Recipe Features

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Steps to make

  1. 1

    Sauté mushrooms

    5 min
    Step 1 - Gruyere, Mushroom & Caramelized Onion BitesStep 1 - Gruyere, Mushroom & Caramelized Onion Bites

    Heat 1 tablespoon of butter and 1 tablespoon of oil in a cast iron skillet. Sauté 5-6 ounces of sliced mushrooms in the pan for about 5 minutes. Remove and set to one side.

  2. 2

    Sauté onions

    5 min
    Step 2 - Gruyere, Mushroom & Caramelized Onion Bites

    Melt the remaining 3 tablespoons of butter and the remaining tablespoon of oil in the skillet and sauté 2 thinly sliced onions in it.

  3. 3

    Caramelize onions

    25 min
    Step 3 - Gruyere, Mushroom & Caramelized Onion Bites

    Add ¼ teaspoon of dried thyme and 1 tablespoon of sugar and continue to cook for 25 minutes over medium low heat until the onions caramelize. Stir the mixture every 5 minutes to ensure it does not burn or stick.

  4. 4

    Deglaze pan

    1 min
    Step 4 - Gruyere, Mushroom & Caramelized Onion BitesStep 4 - Gruyere, Mushroom & Caramelized Onion Bites

    Deglaze the pan by adding 1½ tablespoons of balsamic vinegar and allow the onions to soak it all in. Remove the pan from the heat.

  5. 5

    Combine with mushrooms

    2 min
    Step 5 - Gruyere, Mushroom & Caramelized Onion Bites

    Add the caramelized onions to the mushroom mixture and stir.

  6. 6

    Season and add cheese

    5 min
    Step 6 - Gruyere, Mushroom & Caramelized Onion Bites

    Season with ¼ teaspoon of garlic powder, salt and pepper to taste. Stir well to combine and leave to cool to room temperature.

  7. 7

    Add cheese

    3 min
    Step 7 - Gruyere, Mushroom & Caramelized Onion BitesStep 7 - Gruyere, Mushroom & Caramelized Onion Bites

    Add 4 ounces of Gruyere cheese and mix well.

  8. 8

    Preheat oven and prepare baking sheets

    1 min
    Step 8 - Gruyere, Mushroom & Caramelized Onion Bites

    Preheat the oven to 400 °F. Line 2 baking sheets with parchment paper.

  9. 9

    Cut pastry into squares

    5 min
    Step 9 - Gruyere, Mushroom & Caramelized Onion Bites

    Cut the puff pastry into 2-inch squares using a knife or a pizza cutter. Place them on the lined baking sheet. Use a pastry brush to brush the squares with beaten egg.

  10. 10

    Top with mushroom and onions

    5 min
    Step 10 - Gruyere, Mushroom & Caramelized Onion Bites

    Place a tablespoon of caramelized onion and mushroom mixture in the center of each pastry square.

  11. 11

    Bake

    20 min
    Step 11 - Gruyere, Mushroom & Caramelized Onion Bites

    Bake the squares in the oven for 15-20 minutes rotating once halfway through cooking.

  12. 12

    Serve

    Step 12 - Gruyere, Mushroom & Caramelized Onion Bites

    Cool slightly before serving.

This Gruyere, Mushroom & Caramelized Onion Bites are delicious as a side dish or served on a tray as party canapes. Don’t forget to tag #cookmerecipes when you make these savory snacks!

About the author

Jelena Mardere

Jelena is an interior designer and young mom! As a busy working mom, her time is precious so she’s always looking for a quick and efficient way to get things done. Jelena is very creative, but has a strong practical side. She loves trying new things and travels a lot, especially around Europe. The kitchen is Jelena’s safe space, where she can let her creative side out and dedicate herself to her favorite hobby - cooking!

Recipe Reviews

Have you made this recipe? Share your experience and help other cooks!

★★★★★
★★★★★
4.8 out of 5 (11 reviews)
Ulyssa Martin
March 29, 2025
Verified

These bites were super easy to make and were a hit at my holiday party. Everybody loved them!

Wanda Johnson
October 17, 2024
Verified

These Gruyere bites are a hit! We made them last holiday and my kids couldn't get enough. Total crowd pleaser!

Holly
February 27, 2024
Verified

I made these bites for a party and they were a huge hit. My friends couldn’t stop raving about them. So easy and delicious.

Valeria
October 31, 2023
Verified

Hice estos bocados de Gruyere para una reunión familiar y todos quedaron encantados. La combinación de sabores es maravillosa. La receta es sencilla y perfecta para cualquier ocasión especial.

Yasmine
October 10, 2023
Verified

These bites were a hit at my party!

Maggie84
October 1, 2023
Verified

Superb bites! They disappeared at our family gathering.

Emily
November 20, 2022
Verified

Super delicious bites!

Lewis Cartwright
August 3, 2021
Verified

Superb little bites! My kids loved them at the family gathering last weekend. Will definitely make again for Christmas celebrations!

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