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Egg salad croissant sandwich with creamy filling and fresh ingredients on a plate, perfect for brunch.

Egg Salad Croissant Sandwich Recipe for Brunch

Prep Time 15 minutes
Cook Time 12 minutes
Total Time 27 minutes
Servings: 2

Ingredients
  

  • 4 large eggs boiled and cooled
  • 2 tablespoons mayonnaise adjust to taste, don’t overdo it
  • 1 teaspoon Dijon mustard adds depth without overpowering
  • 1 teaspoon lemon juice or vinegar for brightness
  • Salt to taste
  • Black pepper freshly ground works best
  • 1 tablespoon finely chopped celery for crunch
  • 1 tablespoon chopped green onions or chives optional but recommended
  • 2 fresh croissants slightly crisp on the outside
  • Lettuce leaves optional, adds freshness
  • Tomato slices optional, but pairs really well

Method
 

  1. Place the eggs in a pot and cover them with water, then bring it to a boil. Once boiling, turn off the heat, cover the pot, and let them sit for about 10–12 minutes. Transfer the eggs to cold water immediately after cooking, which helps with peeling and prevents that weird gray ring around the yolk. Once cooled, peel them and pat dry.
  2. Use a knife instead of mashing with a fork for better texture. Chop the eggs into small pieces but don’t go too fine, or you’ll lose that nice bite. I usually do a rough chop first, then a second pass just to even things out.
  3. In a bowl, combine mayonnaise, Dijon mustard, lemon juice, salt, and black pepper. Stir until smooth so the flavors are evenly distributed before adding the eggs. Taste this base before mixing it with the eggs.
  4. Add the chopped eggs, celery, and green onions into the dressing. Gently fold everything together instead of stirring aggressively. You want the eggs coated, not crushed.
  5. Slice the croissants horizontally without cutting all the way through. If they feel too soft, lightly toast them for a minute or two. A little crispness on the outside makes a big difference and keeps the sandwich from getting soggy.
  6. Layer lettuce and tomato on the bottom half of the croissant if using. Spoon a generous amount of egg salad on top, then close the sandwich gently.