Sliced Egg Sandwich with Mustard and Arugula Recipe

If you’re searching for a sandwich that feels both indulgent and fresh, the Sliced Egg Sandwich with Mustard and Arugula Recipe is an absolute winner. This delightful combination of creamy mayo, tangy mustards, and peppery arugula brings a satisfying crunch and brightness to the humble hard-boiled egg, all nestled between buttery toasted rolls. It’s a perfect balance of flavors and textures that will make you want to reach for seconds — or even thirds. Whether you’re making a quick lunch or a light dinner, this sandwich feels like a little gourmet treat you can whip up in no time.

Ingredients You’ll Need

These ingredients are straightforward but thoughtfully chosen to create a sandwich that’s bursting with flavor and texture. Each component plays a key role: the spreads add richness and zing, the eggs provide creamy protein, and the arugula delivers a fresh peppery bite that keeps every mouthful interesting.

• Mayonnaise (1/4 cup): Creamy base that balances the tang of mustard and brightness of arugula perfectly.
• Smooth Dijon Mustard (1 tablespoon): Adds subtle sharpness with a velvety texture.
• Wholegrain Mustard (2 teaspoons): Gives a delightful pop of texture and robust flavor that complements the eggs.
• Prepared Horseradish (2 teaspoons): Offers a gentle heat that wakes up the palate.
• Salt and Freshly Ground Black Pepper: Essential seasoning to bring everything together.
• Soft Challah, Brioche, or Potato Rolls (2, split) or slices from a loaf: Choose your favorite soft bread for a buttery, slightly sweet foundation that toasts beautifully.
• Butter for toasting: Adds a golden crisp finish to your bread.
• Hard-Boiled Eggs (2, cold, peeled, and sliced): The star of the sandwich, creamy and mild, providing protein and richness.
• Thinly Sliced Pickles, Celery, Pickled Onions: Optional add-ins to bring extra crunch and tang—feel free to experiment with these!
• Fresh Arugula (2 cups, roughly torn): Bright, peppery greens that lighten the sandwich.

How to Make Sliced Egg Sandwich with Mustard and Arugula Recipe

Step 1: Prepare the Mustard Mayonnaise Spread

Begin by combining the mayonnaise, smooth Dijon mustard, wholegrain mustard, and prepared horseradish in a small mixing bowl. Stir thoroughly until you achieve a creamy, well-blended spread. Add salt and pepper to taste—this spread is where a lot of the sandwich’s vibrant flavor originates, so don’t be shy with seasoning.

Step 2: Toast the Bread

Lightly butter your rolls or slices of bread, then toast them in a pan or under the broiler until they’re golden and crisp. This step adds a wonderful crunch and helps hold all the juicy fillings together without getting soggy.

Step 3: Assemble the Sandwich

Generously spread the mustard mayonnaise on the toasted bread. Layer the cold, sliced hard-boiled eggs evenly across the bottom slice, then add thin slices of pickles, celery, or pickled onions if you’re using them. Top with a hearty pile of fresh, torn arugula before closing the sandwich with the top piece of bread.

How to Serve Sliced Egg Sandwich with Mustard and Arugula Recipe

Garnishes

Adding a little sprinkle of fresh cracked black pepper or a light drizzle of extra virgin olive oil can elevate your sandwich presentation. A dusting of paprika or some microgreens alongside the arugula adds color and a subtle flavor boost that makes the dish feel restaurant-quality.

Side Dishes

This sandwich pairs beautifully with crisp, cool sides like a simple garden salad, crunchy kettle chips, or a small bowl of pickled vegetables. If you want something warm, a cup of homemade tomato soup complements the creamy egg sandwich perfectly.

Creative Ways to Present

For a fun twist, cut the sandwich into finger-friendly squares for a brunch spread or picnic. You can also serve open-faced slices topped with arugula and a sprinkle of freshly cracked pepper for a rustic, elegant vibe that’s sure to impress guests.

Make Ahead and Storage

Storing Leftovers

If you find yourself with extra sandwiches, wrap them tightly in plastic wrap or store in an airtight container and refrigerate. The flavors actually meld nicely after a little rest, but for best texture, eat within 24 hours to keep the bread from getting soggy.

Freezing

This sandwich is best enjoyed fresh, as freezing can affect the texture of both the bread and the fresh ingredients like arugula. However, you can freeze the mustard mayonnaise separately and hard-boiled eggs do freeze, though their texture changes slightly—so fresh is always preferable here.

Reheating

If you like your sandwich warm, toast the bread and then assemble it fresh. Reheating a fully assembled sandwich isn’t ideal because the fresh arugula can wilt and the texture can become mushy. If you must reheat, remove the greens first and add them back after warming.

FAQs

Can I use other types of mustard in the Sliced Egg Sandwich with Mustard and Arugula Recipe?

Absolutely! While Dijon and wholegrain mustard bring a perfect balance of smoothness and texture, feel free to experiment with spicy brown or yellow mustard if that’s what you have on hand. Each will lend a slightly different flavor profile.

How do I make sure my hard-boiled eggs are perfect for the sandwich?

To get the best egg slices, boil eggs for about 9-10 minutes, then immediately chill them in ice water before peeling. This stops cooking, making them easier to slice and giving that creamy yolk center we love in this sandwich.

Can this sandwich be made vegan or vegetarian-friendly?

This recipe is vegetarian-friendly but not vegan due to the eggs and mayonnaise. For a vegan option, you could swap eggs with firm tofu slices and use vegan mayo, although it will have a very different flavor and texture.

Are there any suitable bread substitutes if I don’t have challah, brioche, or potato rolls?

Certainly! Any soft, slightly sweet roll or bread will work. Think brioche buns, soft sandwich bread, or even a sturdy sourdough if you prefer a more rustic feel. Just make sure to toast it gently for that buttery crisp.

What makes the arugula an important ingredient in this sandwich?

Arugula adds peppery brightness and a fresh crunch that balances the creamy richness of the egg and the zing of mustard. It’s a simple touch that elevates the entire sandwich from ordinary to truly exciting.

Final Thoughts

I can’t recommend the Sliced Egg Sandwich with Mustard and Arugula Recipe enough for your next meal. It’s quick to make but full of layers of flavor that feel special every time. Whether you’re enjoying a solo lunch or sharing with friends, this sandwich promises to be a comforting yet sophisticated bite that leaves you smiling. Give it a try and watch it become one of your favorite go-to recipes!

Print