French Onion Soup Bites

Charlotte

These French Onion Soup Bites deliver all the rich, cozy flavor of classic French onion soup in a warm, cheesy, bite-sized appetizer. Perfect for holidays, parties, and easy entertaining.

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Prep Time 10

Cook Time 30

Total Time 40

Course Appetizer

Cuisine French

Servings Bites

Calories 78 kcal

Ingredients

For the Caramelized Onions

3 large yellow onions thinly sliced
2 tbsp butter
1 tbsp olive oil
2 cloves garlic minced
½ tsp salt
¼ tsp black pepper
1 tsp fresh thyme or ½ teaspoon dried
1 tbsp balsamic vinegar or 2 tbsp beef broth

For the Bites

1 sheet puff pastry thawed, OR 24 mini phyllo cups, OR 1 thin baguette, sliced
1 ½ cups shredded Gruyère
Fresh thyme or chives for garnish

Instructions

Caramelize the onions:

Heat butter and olive oil in a skillet over medium-low heat. Add onions and cook 20–25 minutes, stirring occasionally, until golden and soft. Add garlic, salt, pepper, thyme, and balsamic; cook 2–3 minutes more.

Prepare the base:

If using puff pastry: cut into 1.5-inch squares and place in a mini muffin pan.
If using baguette: lightly toast slices.
If using phyllo cups: place on a baking sheet.

Assemble:

Spoon a small amount of caramelized onions into each base. Top with shredded Gruyère.

Bake:

Bake at 375°F (190°C) for 12–15 minutes, or until cheese is melted and edges are golden.

Garnish & serve:

Remove from oven, top with thyme or chives, and serve warm.

Notes

Keep puff pastry cold for best results.
For extra depth, add a splash of Worcestershire to the onions.
To make ahead: caramelize onions up to 3 days before assembling.

Nutrition

Calories: 78kcalCarbohydrates: 6gProtein: 3gFat: 5gFiber: 0.5gSugar: 2g

Keyword French Onion Soup Bites

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