Breakfast Sandwich with Prosciutto & Watercress

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This homemade breakfast sandwich made with crispy prosciutto, watercress and a runny fried egg is guaranteed to impress at your next brunch! 

Check out this ridiculous breakfast sandwich 😍

Side on shot of breakfast sandwich on a pink plate

One of my favourite things about weekends is having really special breakfasts. 

Whether that means going out for brunch with Will or some friends or staying in and cooking up something delicious. 

Recently I’ve been trying out some different breakfast and brunch ideas like these Turkish eggs and these huevos rancheros baked eggs but sometimes I just want to go back to basics and make a really good breakfast sandwich.

And this one was exactly what I wanted.

Breakfast sandwich topped with watercress on a pink plate on a marble surface

Prosciutto and egg breakfast sandwich on a pink plate

I have to admit that Will is normally the one that makes breakfast at the weekend while I stay in bed because he’s the best but on the odd occasion that I get up first I like to make something that I know he’s going to love like these sandwiches.

Why we love these prosciutto & egg breakfast sandwiches

  • That crispy prosciutto is a complete revelation, it’s super flavourful, salty deliciousness and it’s the exact kind of ingredient that makes a weekend breakfast extra special
  • The sandwiches are easily customisable. If you can’t get hold of watercress then switch for rocket (arugula) or baby spinach leaves, if you’re not sure about the prosciutto then go for bacon instead
  • They only need a handful of ingredients so they’re one of my go to special breakfasts. I like to pick up the ingredients on a Friday on my way home from work so that I’m fully prepped to serve these sandwiches up the next morning

Open breakfast sandwich topped with watercress on a pink plate

Close up of fried egg dripping yolk from a sandwich

Breakfast Egg Sandwich with Prosciutto & Watercress Ingredients:

  • Prosciutto: This gets all crispy after a quick fry in a hot pan. It happens almost as soon as it touches the heat. If you can’t get prosciutto then use bacon
  • Bread: Thick slices. I like a nice crusty loaf of white bread. You could also use an English muffin if you prefer
  • Butter: For spreading on the bread slices before frying to get them nice and browned (hey, no one said this sandwich was healthy!). Use leftovers to make these chilli prawns with tomato butter
  • Eggs: I like mine fried until a bit crispy around the edges and a tiny bit runny in the middle but you can do them however you like
  • Watercress: Or any other green you like
  • Mayonnaise: Spread a thin layer on your bread. Mayo is also amazing in my all time favourite veggie burgers
  • Dijon Mustard: Plus a thin layer of mustard over the mayo before sandwiching the whole thing together

Keep scrolling to get the full recipe!

Breakfast sandwich on a pink plate with tea in the background

Crispy fried egg on a breakfast sandwich

How to make a breakfast sandwich:

  1. Fry the prosciutto and bread: Heat a drizzle of oil over a high heat and fry the prosciutto in batches for a 30 seconds, drain on kitchen paper. Spread butter over one side of each slice of bread and fry until browned and toasted.
  2. Cook your egg: I go for fried here because that’s the classic for a breakfast sandwich but if you prefer poached or even scrambled then go for it.
  3. Make your sandwich: Spread a thin layer of both mustard and mayo on one slice of bread, top with crispy prosciutto, watercress and your egg followed by the other piece of bread. Serve.

Equipment you need to make this recipe…

Watercress on a breakfast sandwich on a pink plate

Breakfast sandwich on a pink plate with yolk dripping down the side

Expert tips for making breakfast sandwiches

  • To make this recipe gluten free then just use your favourite brand of gluten free bread or English muffins
  • If you want to make this a vegetarian breakfast sandwich then you could switch the prosciutto for your favourite cheese

Want more? Try these other savoury breakfast recipes!

Side on shot of breakfast sandwich on a pink plate

Breakfast Sandwich with Prosciutto & Watercress

This homemade breakfast sandwich made with crispy prosciutto, watercress and a runny fried egg is guaranteed to impress at your next brunch! 
5 from 4 votes
Print Pin Rate
Course: Breakfast
Cuisine: Mediterranean
Prep Time: 5 minutes
Cook Time: 10 minutes
Total Time: 15 minutes
Servings: 2 sandwiches
Calories: 319kcal
Author: Amy Fulwood


  • 6 slices Prosciutto
  • 4 thick slices Bread
  • 2 tbsp Butter
  • 2 Eggs
  • Handful Watercress
  • 1 tbsp Mayonnaise
  • 1/2 tbsp Dijon Mustard adjust according to taste


  • Heat a tiny drizzle of oil in a frying pan and add the prosciutto. It will start to crisp up immediately. Fry for about 30 second, flipping halfway through then transfer to a paper towel lined plate.
  • Butter one side of each slice of bread and fry in the same pan until browned and crispy. Remove to a cutting board. Fry your eggs to your liking.
  • Spread a layer of mayo and a layer of mustard on the unfried side of two of the slices of bread. Top with 3 slices of prosciutto each followed by half the watercress, an egg and the other slice of bread (fried side out). Serve.
Nutrition Facts
Breakfast Sandwich with Prosciutto & Watercress
Amount Per Serving
Calories 319 Calories from Fat 270
% Daily Value*
Fat 30g46%
Saturated Fat 12g60%
Cholesterol 212mg71%
Sodium 419mg17%
Potassium 108mg3%
Carbohydrates 1g0%
Protein 9g18%
Vitamin A 590IU12%
Calcium 25mg3%
Iron 0.9mg5%
* Percent Daily Values are based on a 2000 calorie diet.


Nutrition information is an estimate and will vary depending on the exact ingredients used.
Did you make this recipe?Tag @amycookreport on Instagram and hashtag it #thecookreport!

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Pinterest image for breakfast sandwich with text overlay

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  • Reply
    Marlynn | Urban Bliss Life
    18/03/2019 at 10:13 PM

    5 stars
    I love everything about this breakfast sandwich! The watercress is a nice elegant touch 🙂

  • Reply
    18/03/2019 at 10:20 PM

    5 stars
    This looks AMAZING! Just scheduled to pin to my sandwich board. I love how crispy that prosciutto looks and the egg looks like it’s cooked to perfection.

  • Reply
    Noel Lizotte
    18/03/2019 at 11:57 PM

    5 stars
    What a delicious sandwich! I’m going to make this for supper one night this week!
    Week day breakfast is usually a hurried event and even a simple sandwich like this would take too much time for me. I’m not going to be able to wait for the weekend tho!

  • Reply
    19/03/2019 at 12:30 AM

    5 stars
    Great recipe. The runny eggs were perfect with the prosciutto and watercress.

  • Reply
    19/03/2019 at 12:48 AM

    Yummy! I can imagine this would also work well with a poached egg.

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