Sourdough Avocado Toast with Egg: The Ultimate Guide

By Rowan Pierce

On December 9, 2025

A close-up, dynamic shot of sourdough avocado toast with a perfectly fried egg on a white plate.

Cuisine

American

Prep time

5 minutes

Cooking time

5 minutes

Total time

10 minutes

Servings

1 person

Welcome to the ultimate guide to creating the perfect sourdough avocado toast with egg. If you’ve been searching for a recipe that balances creamy, tangy, and savory in every single bite, you’ve found it. This isn’t just a meal; it’s a culinary experience that turns a simple breakfast into a gourmet moment.

Forget bland, mushy toast. We are diving deep into the techniques that elevate this dish from a simple snack to a truly satisfying meal, perfect for a slow weekend brunch or a quick, energizing weekday breakfast. Let’s get started.

Why This is the Only Avocado Toast Recipe You’ll Ever Need

What makes this recipe stand apart is our focus on the fundamentals: texture, temperature, and taste. We don’t just throw ingredients together. We build layers of flavor, starting with perfectly toasted sourdough, followed by flawlessly seasoned avocado, and crowned with a beautifully cooked egg with a jammy, golden yolk. It’s a simple dish, but mastering it is an art.

The Three Pillars of Perfect Avocado Toast

Greatness lies in the details. The success of your sourdough avocado toast with egg rests on three key components. Getting these right is non-negotiable for achieving breakfast perfection.

Pillar 1: Selecting the Perfect Sourdough

The foundation of our toast is, of course, the bread. Sourdough is the ideal choice for its tangy flavor and incredibly sturdy structure. Its open crumb and chewy crust hold up beautifully against the creamy avocado without becoming soggy. Look for a loaf with a deep golden-brown crust and a good, airy interior.

Pillar 2: Choosing and Preparing the Avocado

Your avocado should be ripe but still firm. To check for ripeness, gently press the skin; it should yield slightly but not feel mushy. A Hass avocado is typically the best choice for its creamy texture and rich flavor. The key to the perfect avocado mash is to keep it simple—a little salt, a hint of pepper, and a squeeze of fresh lime or lemon juice to brighten the flavor and prevent browning.

Pillar 3: Mastering the Egg

The egg is the crown jewel. While you can use a scrambled egg, a fried or poached egg with a runny yolk creates a luxurious sauce that ties everything together. We’ll focus on a sunny-side-up fried egg for this recipe, as it provides that perfect combination of a crisp, lacy edge and a liquid gold center. Learn the secret to a perfect fried egg here (coming soon).

Ingredients You’ll Need

This recipe is all about quality over quantity. Here’s what you’ll need for one serving:

  • Sourdough Bread: One thick slice, about 1-inch thick.
  • Avocado: Half of a large, ripe Hass avocado.
  • Egg: One large, high-quality, free-range egg.
  • Lime or Lemon Juice: One teaspoon, freshly squeezed.
  • Olive Oil or Butter: One teaspoon, for the egg and toast.
  • Seasoning: Flaky sea salt, freshly cracked black pepper, and optional red pepper flakes.
An overhead flat lay of the ingredients for avocado toast: sourdough, avocado, egg, lime, and seasonings.
Quality ingredients are the key to the perfect breakfast.

How to Make Sourdough Avocado Toast with Egg: Step-by-Step

Follow these simple steps for a flawless result every time.

  1. Toast the Sourdough: Drizzle or brush your slice of sourdough with a little olive oil or spread a thin layer of butter on it. Toast it in a skillet over medium heat, in a toaster, or under a broiler until it’s golden brown and crisp on both sides.
  2. Prepare the Avocado: While the bread is toasting, scoop the flesh of your avocado half into a bowl. Add the fresh lime or lemon juice, a pinch of salt, and pepper. Gently mash with a fork, leaving some chunks for texture. Avoid over-mashing; we want a rustic texture, not a purée.
  3. Cook the Egg: In a non-stick skillet, heat the remaining olive oil or butter over medium-low heat. Crack the egg into the pan and cook for 2-3 minutes, or until the whites are set but the yolk is still runny. For extra flavor, you can baste the whites with the hot oil.
  4. Assemble Your Toast: Spread the mashed avocado evenly over your warm sourdough toast, right to the edges. Gently slide the fried egg on top of the avocado.
  5. Garnish and Serve: Finish with a sprinkle of flaky sea salt, more black pepper, and a pinch of red pepper flakes if you like a little heat. Serve immediately and enjoy the perfect bite.
A four-panel image showing the steps to make sourdough avocado toast with an egg.
Four simple steps to breakfast perfection.

The Recipe

A close-up, dynamic shot of sourdough avocado toast with a perfectly fried egg on a white plate.

Sourdough Avocado Toast with Egg: The Ultimate Guide

Learn to make the ultimate sourdough avocado toast with egg. This recipe features perfectly toasted sourdough bread, creamy avocado mash, and a flawless sunny-side-up egg with a runny yolk. A simple, gourmet breakfast ready in minutes.
Prep Time 5 minutes
Cook Time 5 minutes
Total Time 10 minutes
Servings: 1 person
Course: Breakfast, Brunch
Cuisine: American
Calories: 380

Ingredients
  

  • 1 slice Sourdough Bread About 1-inch thick
  • 0.5 Large Hass Avocado Ripe but firm
  • 1 Large Egg Free-range preferred
  • 1 tsp Lime or Lemon Juice Freshly squeezed
  • 1 tsp Olive Oil or Butter
  • Flaky Sea Salt To taste
  • Freshly Cracked Black Pepper To taste
  • Red Pepper Flakes Optional, to taste

Equipment

  • 1 Skillet A non-stick skillet is recommended for the egg.
  • 1 Toaster Optional, can also toast in the skillet.

Method
 

  1. Drizzle or brush your slice of sourdough with a little olive oil or spread a thin layer of butter on it. Toast it in a skillet over medium heat, in a toaster, or under a broiler until it's golden brown and crisp on both sides.
  2. While the bread is toasting, scoop the flesh of your avocado half into a bowl. Add the fresh lime or lemon juice, a pinch of salt, and pepper. Gently mash with a fork, leaving some chunks for texture.
  3. In a non-stick skillet, heat the remaining olive oil or butter over medium-low heat. Crack the egg into the pan and cook for 2-3 minutes, or until the whites are set but the yolk is still runny.
  4. Spread the mashed avocado evenly over your warm sourdough toast, right to the edges. Gently slide the fried egg on top of the avocado.
  5. Finish with a sprinkle of flaky sea salt, more black pepper, and a pinch of red pepper flakes if you like a little heat. Serve immediately.

Notes

For a perfect runny yolk, avoid high heat when cooking the egg; medium-low is best.
To easily check avocado ripeness, flick the small stem cap at the top. If it comes off easily and you see green underneath, it’s ready to use.

Pro Tips from a Seasoned Chef

Take your toast to the next level with these expert tips:

  • Don’t Mash Directly on the Toast: Always mash your avocado in a separate bowl. Mashing it directly on the toast can tear the bread and will make it soggy faster.
  • Season Every Layer: Season the avocado mash, and then season the egg again at the end. Layering your seasonings builds a more complex flavor profile.
  • Use Good Fat: Toasting your bread with high-quality olive oil or grass-fed butter adds a noticeable richness to the final dish. Find the best olive oil for your kitchen (coming soon).

Delicious Variations to Try

While the classic is divine, this recipe is a perfect canvas for creativity. Try these delicious additions:

  • Add Some Cheese: Sprinkle with crumbled feta or goat cheese for a salty, tangy kick.
  • Turn Up the Heat: Drizzle with your favorite hot sauce or a chili-garlic crisp for a spicy version.
  • Introduce Fresh Herbs: Top with fresh cilantro, dill, or chives for a burst of freshness. Discover more herb pairing ideas (coming soon).
  • Everything Bagel Seasoning: A generous sprinkle of this seasoning blend adds texture and a fantastic onion-garlic flavor.
An overhead view of sourdough avocado toast with a fried egg on a white plate.
A perfect balance of flavor and texture, seen from above.

Frequently Asked Questions

The key is to add an acid. Tossing the mashed avocado with a teaspoon of fresh lime or lemon juice will significantly slow down the oxidation process that causes it to brown.

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On average, a single slice of sourdough avocado toast with one egg contains approximately 350-400 calories, depending on the thickness of the bread and the amount of oil or butter used.

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Yes, it is a very healthy and balanced breakfast. You get healthy fats and fiber from the avocado, complex carbohydrates from the sourdough, and high-quality protein from the egg, making it a nutritious and filling meal.

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There are many great options! Try a sprinkle of red pepper flakes for heat, everything bagel seasoning for a savory crunch, crumbled feta cheese for a salty tang, or fresh herbs like cilantro or chives.

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A fried or poached egg with a runny yolk is generally considered the best, as the yolk creates a delicious, rich sauce for the toast. However, scrambled eggs also work well if you prefer.

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Share Your Culinary Masterpiece!

Now that you’ve mastered the art of making the perfect sourdough avocado toast with egg, we’d love to see your creations! Snap a photo and share it with our community of fellow food lovers. Don’t forget to follow and tag us on Pinterest for more culinary inspiration and recipes that will make you feel like a chef in your own kitchen.

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