How many servings does this recipe make?

This recipe makes 4 servings. You can adjust the portion size directly on this page.

What ingredients do I need for Brioche En Surprise (Onion Sandwiches) ?

You need 5 ingredients. The key ingredients include: Twenty-four 1/4- inch- thick brioche slices, cut into, 1/3 cup mayonnaise, 2 small yellow onions, cut into 24 very thin rounds, Kosher salt, and more.

Is Brioche En Surprise (Onion Sandwiches) suitable as general?

Yes, Brioche En Surprise (Onion Sandwiches) falls under the General category and is a great choice for this type of meal.

How do I store leftover Brioche En Surprise (Onion Sandwiches) ?

Store leftovers in an airtight container in the refrigerator for up to 3–4 days. Reheat gently before serving.

Brioche En Surprise (Onion Sandwiches) Recipe

Name: Brioche En Surprise (Onion Sandwiches)
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: Twenty-four 1/4- inch- thick brioche slices, cut into; 1/3 cup mayonnaise; 2 small yellow onions, cut into 24 very thin rounds; Kosher salt; 3 tablespoons finely chopped fresh flat-leaf parsley, patted dry

Try this homemade Brioche En Surprise (Onion Sandwiches) recipe the whole family will love. Made with mayonnaise, yellow onions, Kosher salt and parsley…

This Brioche En Surprise (Onion Sandwiches) relies on simple, everyday ingredients such as mayonnaise and kosher salt. It comes together quickly and makes 4 servings, at about 152 kcal each. The step-by-step instructions below are written to be easy to follow, even on a busy day.

It's versatile enough for an easy weeknight dinner yet satisfying enough for guests at the weekend. Serve it with your favorite sides, and keep any leftovers for a quick meal the next day.

Updated Jun 30, 2026

Serves 4 General

Servings: persons

Twenty-four 1/4- inch- thick brioche slices, cut into
1/3 cup mayonnaise
2 small yellow onions, cut into 24 very thin rounds
Kosher salt
3 tablespoons finely chopped fresh flat-leaf parsley, patted dry

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Quick Info

Servings
4 servings
Calories
152 kcal
Category
General

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