Express French Onion Soup Bites

Featured in: Soups & Stews

Enjoy classic French onion soup flavors in a bite-sized form, wrapped in buttery puff pastry. Caramelized onions, broth, and Gruyère cheese create a savory filling that's irresistibly cheesy and golden after baking. These mini appetizers are quick to assemble and perfect for sharing. The crisp pastry and gooey cheese make each bite a satisfying treat for gatherings, offering the comforting taste of French onion in a simple, hand-held style.

Updated on Mon, 18 Aug 2025 19:09:51 GMT
A slice of cheesy bread on a plate. Save
A slice of cheesy bread on a plate. | cheerfulchefs.com

These express French onion soup bites put the rich flavor of classic French onion soup into a crispy and cheesy finger food. They are a crowd-pleasing appetizer that can be made in under thirty minutes and always disappear fast on the party table.

My friends still talk about the night I brought these to a game night instead of the usual chips and dip. They disappeared before halftime and I had to promise to bring two batches next time.

Ingredients

  • Puff pastry sheet: the flaky buttery base that holds everything together for a crisp bite look for one that is golden and puffs nicely in baking
  • Caramelized onions: sweet and savory add richness and depth homemade is amazing but a good store-bought jar works in a pinch
  • Beef broth or vegetable broth: just a splash enhances flavor choose a rich deeply flavored broth for best results
  • Gruyère cheese: nutty and perfectly melty for that signature French onion soup taste shred fresh from a block for best melt

Instructions

Prepare the Muffin Tin:
Lightly grease a mini muffin tin with oil or butter to prevent sticking and help the bites crisp up at the edges. Preheat the oven to the proper temperature for an even bake.
Shape the Pastry:
Unfold the thawed puff pastry onto a lightly floured surface and use a sharp knife to cut it into twelve even squares. Press each square gently into the cavities of the muffin tin ensuring the dough comes up the sides to form little cups for fillings.
Fill the Bites:
Spoon caramelized onions into each pastry cup making sure there is enough to give every bite that sweet savory onion flavor. Drizzle a tiny splash of broth over the onions in each cup to keep them juicy and echo the soup flavor.
Add Cheese Topping:
Evenly distribute shredded Gruyère cheese over each bite piling it high for a glorious bubbly top. Take care to keep cheese mostly inside the cups to avoid burning on the tin.
Bake to Perfection:
Place muffin tin on a middle rack in the preheated oven. Bake for twelve to fifteen minutes until the pastry is puffed and deeply golden and the cheese has melted and bubbled with some browned spots.
Let Cool and Serve:
Allow bites to cool in the tin for three to five minutes so they set and are easier to remove. Gently loosen with a small spoon before serving warm.
A plate of food with a spoon in it. Save
A plate of food with a spoon in it. | cheerfulchefs.com

These bites made me fall in love with Gruyère all over again. I once tried it with Swiss in a pinch and while still good that nutty Gruyère tang is what makes this so special. Watching my niece gleefully pop one after another on New Year’s Eve is a memory that always makes me smile.

Storage Tips

Let leftovers cool completely then store them in an airtight container in the fridge for up to three days. Reheat briefly in the oven or toaster oven to revive their crispiness. These do not stay crisp if microwaved.

Ingredient Substitutions

Gruyère cheese can be swapped for Swiss or even mozzarella for a milder flavor. For a vegetarian version use vegetable broth and check that your puff pastry is free from animal fats. You can also make your own quick caramelized onions by cooking thinly sliced onions with a pinch of sugar.

Serving Suggestions

These bites are perfect for cocktail parties family movie nights or as a hearty snack. Serve them alongside a crisp green salad or even as part of a brunch spread. They pair especially well with sparkling drinks and light red wines.

Cultural Roots and Variations

French onion soup is classic French comfort food so this recipe captures its essence in a playful modern format. Swapping bread for puff pastry makes it faster and more festive. Try this with a sprinkle of fresh thyme or a touch of black pepper for a twist.

Seasonal Adaptations

These work year round with store-bought or homemade onions Add a sprinkle of fresh chives in spring for extra brightness For festive winter parties use star shaped pastry cutters in place of squares for a fun look

Success Stories

A neighbor told me she made these with vegan cheese and mushrooms instead of onions. She brought a platter to a block party and every last bite was gone before the barbecue even hit the table. Another friend freezes an extra batch for unexpected company.

Freezer Meal Conversion

Bake the bites fully and let cool then freeze on a baking sheet until solid before transferring to a zip top bag. Reheat from frozen in a 375 degree oven for ten to fifteen minutes and they are just as tasty as fresh.

A slice of cheesy bread on a plate. Save
A slice of cheesy bread on a plate. | cheerfulchefs.com

These French onion soup bites are perfect for making any gathering extra special. Enjoy their cheesy richness and crisp pastry at your next celebration.

Recipe FAQs

Can I substitute Swiss cheese for Gruyère?

Yes, Swiss cheese is a great alternative if Gruyère isn’t available or to suit your preference.

Is there a vegetarian option for the broth?

Absolutely. Use vegetable-based broth instead of beef broth for a vegetarian-friendly version.

How can I quickly caramelize onions?

Sauté thinly sliced onions with a pinch of sugar over medium heat for about 10-15 minutes until browned.

What type of puff pastry works best?

Store-bought frozen puff pastry, thawed before use, works best for convenience and flaky texture.

How should I serve these mini bites?

Serve warm for the best texture and flavor. Perfect as party appetizers or elegant starters.

Express French Onion Soup Bites

Mini French onion soup bites with caramelized onions and melty cheese in crisp pastry. Perfect for parties.

Prep Time
10 minutes
Cook Time
15 minutes
Overall Time
25 minutes
Creator Ruby Smiles

Recipe Type Soups & Stews

Skill Level Easy

Cuisine Background French-Inspired

Portions 12 Serves

Dietary Preferences Vegetarian-Friendly

What You’ll Need

Base

01 1 sheet puff pastry, thawed
02 1/2 cup caramelized onions

Topping

01 1/4 cup beef broth or vegetable broth
02 3/4 cup shredded Gruyère cheese

Step-by-Step Guide

Step 01

Prepare oven and pan: Preheat the oven to 400°F. Lightly grease a mini muffin tin to prevent sticking.

Step 02

Shape puff pastry: Cut the thawed puff pastry into 12 equal squares and press each square into the cavities of the mini muffin tin.

Step 03

Add filling: Place a spoonful of caramelized onions into each pastry-lined cavity and drizzle with a small splash of broth.

Step 04

Add cheese topping: Distribute shredded Gruyère cheese evenly on top of each bite.

Step 05

Bake: Transfer the muffin tin to the oven and bake for 12 to 15 minutes, or until the pastry is golden and the cheese is bubbly.

Tools You’ll Need

  • Mini muffin tin
  • Knife and cutting board
  • Small spoon

Potential Allergens

Inspect ingredients for specific allergens and contact a professional for concerns.
  • Contains dairy and wheat (gluten). Check broth and puff pastry packaging for additional allergens.

Nutritional Details (Per Serving)

Provided as supportive info; always cross-check with your healthcare provider.
  • Calories: 110
  • Fats: 7 grams
  • Carbohydrates: 9 grams
  • Proteins: 3 grams