The Ultimate Sourdough Bread Breakfast Sandwich

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Searching for an easy breakfast recipe that promises to bring the joy of homemade goodness to your mornings? Our sourdough bread breakfast sandwich is versatile and simple yet satisfying!

Related: how to reheat sourdough bread, what does sourdough bread taste like

Hand holding sourdough bread breakfast sandwich.

Whether you’re looking for a healthy breakfast on a busy morning, or a light snack, just toast your sourdough bread on a pan, add in your favorite ingredients and enjoy this tasty sandwich any time of day. 

Why You’ll Love this Recipe

This hearty breakfast sandwich is a perfect match for anyone who craves a balanced and filling breakfast. Sourdough bread is the best bread because it provides the ideal canvas for a variety of ingredients, from classic combinations like eggs and crispy bacon to more adventurous options, allowing for endless combinations!

This classic breakfast recipe is straightforward and no advanced cooking skills are required to craft your own cheesy bacon egg sandwich.

Ingredients You’ll Need

We’ve included a few of our favorite breakfast ingredients to craft this easy sourdough breakfast sandwich recipe. Feel free to use a combination of these and your favorite fillings!

  • Butter: Butter is used to toast the sourdough slices, adding a rich and savory flavor to the sandwich bread.
  • Sourdough Bread: Serves as the foundation of the sandwich, providing its beloved tangy flavor and chewy texture.
  • Mayonnaise: Adds a creamy and slightly sharp element to the toasted slices of bread, enhancing the overall texture.
  • Arugula: Arugula adds freshness and a peppery flavor, balancing the richness of other ingredients.
  • Canadian Bacon: Provides a savory and slightly smoky flavor, adding a meaty element to the sandwich.
  • Fresh Eggs: A fried egg with a runny yolk adds a rich protein element, creating a satisfying breakfast experience.
  • Muenster Cheese: These cheese slices add a mild and creamy flavor.
  • Avocado: Fresh slices of avocado add creaminess and a buttery-like texture, complementing the other ingredients.

See recipe card for quantities.

Sourdough bread breakfast sandwich ingredients.

Step By Step Instructions

Here, you will find step by step instructions with process shots.

Sourdough bread slices in a cast iron pan.

1. Start by melting a little butter in a frying pan over medium-low heat. Toast the sourdough slices for 1-2 minutes on each side until they turn golden brown and crispy.

Spreading mayonnaise on sourdough bread slice.

2. Take the sourdough toast out of the pan and place on a cutting board or plate. Spread a layer of mayo on one side of both sourdough slices. Set them aside.

2 slices of Canadian bacon over bed of arugula on toast slice.

3. Add bed of arugula on one slice. Fry slices of bacon until crispy and place it over arugula.

Sunny side up egg with cheese in a pan.

4. Fry an egg on medium-high heat. Once egg is almost cooked to desired amount, place cheese slice on top. 

Fried egg with cheese on bread slice.

5. Cook for a few more seconds and place it over the bacon.

Avocado slices over fried egg with cheese on sourdough bread slice.

6. Next, layer fresh avocado slices on top of the egg. Finish with sea salt and a few grinds of black pepper. Add second slice of sourdough over the avocado. Cut sandwich in half. Enjoy!

Recipe Tips and Tricks

  • Serve your sourdough bread breakfast sandwich with a side of fresh berries, fruit smoothie, hot coffee, or a chilled glass of orange juice.
  • Achieve ideal toast level by adjusting the heat carefully. Start on low and increase to medium-low for that perfect crunch without burning .
  • Place the toasted sourdough slices on a paper towel to avoid sogginess.
  • Cook the egg any way you like. Whether you like a runny egg or a sunny side up egg, either one is a great choice!
  • Mashed avocado works just as well as sliced avocado. Feel free to improvise.
  • If you are a grilled cheese sandwich lover, grill this sourdough sandwich instead of toasting the slices.

Recipe Variations

  • Dairy-Free – Choose dairy-free cheese or omit the Muenster cheese for a lactose-free option. You can also use dairy-free mayo.
  • Gluten-Free – Use gluten-free sourdough bread to make this breakfast sandwich suitable for a gluten-free diet.
  • More Veggies – Experiment with grilled mushrooms, bell peppers, or other vegetables instead of bacon for a plant-based alternative.
  • More Flavor – Add a drizzle of sriracha or hot sauce for additional flavor and a spicy kick.
  • Condiments – Spread a mixture of mayo and cream cheese for a richer experience.

Recipe Substitutions

  • Sourdough Bread  You can swap out sourdough bread for sourdough English muffins or sourdough biscuits.
  • Butter – Instead of butter, you can use olive oil to toast each side of each slice of bread.
  • Canadian Bacon – You can use sausage patties or turkey bacon in lieu of Canadian bacon.
  • Muenster Cheese – Explore different cheese options like white cheddar, sharp cheddar, pepper jack cheese,  mozzarella cheese,  or any other slice of cheese to personalize the flavor profile.
  • Arugula – Use any of your favorite greens, like baby spinach, instead of arugula.
  • Over-Easy Eggs – Instead of making an over-easy egg, feel free to make fluffy eggs or a poached egg. 
Close up of sourdough bread breakfast sandwich.

Storage Tips

  • Wrap the sandwich in parchment paper or foil, or place it in an airtight container. Refrigerate for up to a day. However, note that the bread may go soggy.
  • For better storage, store ingredients in separate airtight containers.
  • For longer storage, freeze the toasted sourdough slices and cooked bacon separately in freezer-safe containers or bags.
  • Reheat the sourdough and bacon slices in a toaster oven for the perfect crunch. Check out our guide on how to reheat sourdough bread for different reheating methods. Assemble the ultimate breakfast sandwich just before serving. 

Common Questions Asked About a Sourdough Bread Breakfast Sandwich

Why Sourdough Bread?

It’s the perfect canvas that adds a tangy flavor and chewy texture, making for a more interesting and great sandwich. 

How Can I Prevent My Breakfast Sandwich From Becoming Too Soggy?

  1. Toast the bread.
  2. Place ingredients strategically to create a moisture barrier. For example, layering greens or lettuce between wet ingredients and the bread can help absorb excess moisture. 
  3. Use thicker spreads like a hearty mayonnaise, avocado mash, or a creamy cheese to create a protective layer on the bread, reducing direct contact with moist fillings.
  4. Drain and pat dry ingredients that release moisture. 
  5. Allow hot ingredients, such as scrambled eggs or sautéed vegetables, to cool slightly before assembling the sandwich to reduce steam and condensation.
  6. Serve immediately. If making sourdough breakfast sandwiches ahead of time, assemble it as close to serving time as possible to maintain the desired texture and prevent sogginess.

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Sourdough Bread Breakfast Sandwich

Whether you're looking for a balanced breakfast on a busy morning, or a light snack, just toast your sourdough bread on a pan, add in your favorite ingredients and enjoy this sourdough bread breakfast sandwich any time of day. 
Print Recipe PIN RECIPE
Prep Time:5 minutes
Cook Time:6 minutes
Servings: 1

Ingredients

  • 1 tbsp butter
  • 2 slices sourdough bread
  • 2 tbsp mayonnaise
  • arugula, handful
  • 2 slices Canadian bacon
  • 1 egg
  • 1 slice muenster cheese
  • 1/2 avocado

Instructions

  • Start by melting a little butter in a frying pan over medium-low heat. Toast the sourdough slices for 1-2 minutes on each side until they turn golden brown and crispy.
  • Take the sourdough toast out of the pan and place on a cutting board or plate. Spread a layer of mayo on one side of both sourdough slices. Set them aside.
  • Add bed of arugula on one slice. Fry slices of bacon until crispy and place it over arugula.
  • Fry an egg on medium-high heat. Once egg is almost cooked to desired amount, place cheese slice on top. Cook for a few more seconds and place it over the bacon.
  • Layer fresh avocado slices on top of the egg. Finish with sea salt and a few grinds of black pepper. Add second slice of sourdough over the avocado. Cut sandwich in half. Enjoy

Share your breakfast adventures with us! What’s your favorite variation or twist? Please leave a comment below and rate the recipe. 

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