Fairfax Breakfast Sandwich Recipe
Introduction
The Fairfax Breakfast Sandwich is a flavorful morning treat combining sweet caramelized onions, creamy scrambled eggs, and a spicy sriracha mayo on a buttery brioche bun. This sandwich offers a perfect balance of savory and heat to kickstart your day.

Ingredients
- 3 tbsp unsalted butter (divided)
- 1 tbsp cooking oil
- 1 medium yellow onion (sliced)
- 1/4 cup water
- 3 large eggs
- 2 tbsp chives (thinly sliced)
- 2 tbsp mayonnaise
- 1 tbsp Sriracha
- 1 brioche bun (sliced)
- 1 slice cheddar cheese
- Salt and pepper (to taste)
Instructions
- Step 1: To caramelize the onion, heat a skillet over medium heat and add cooking oil and sliced onions. Sprinkle with a pinch of salt and add 1 tablespoon of butter. Spread the onions in a single layer and reduce heat to low. Cook, stirring often, until soft and lightly golden.
- Step 2: Add 1/4 cup water to deglaze the pan and continue cooking until the onions are fully caramelized. Keep warm.
- Step 3: For the eggs, crack the eggs into an unheated skillet. Using a spatula, scramble the eggs until well blended. Add 1 tablespoon of butter, then place the skillet over medium-low heat. Stir continuously as you cook the eggs.
- Step 4: Season with salt and chives, cooking until the eggs just begin to set. Remove from heat and keep warm.
- Step 5: In a small bowl, mix mayonnaise and Sriracha in a 2:1 ratio until well combined to create the spicy sauce.
- Step 6: Toast the brioche bun with a little butter. Spread the sriracha mayo on both the top and bottom halves of the bun.
- Step 7: Place the scrambled eggs on the bottom bun. Slightly melt the cheddar cheese in a nonstick pan and put it on top of the eggs.
- Step 8: Add 1-2 tablespoons of the caramelized onions on top of the cheese. Close the sandwich, and enjoy!
Tips & Variations
- Use a nonstick skillet for easy scrambling and melting the cheese without sticking.
- For extra flavor, try adding a slice of avocado or some crispy bacon inside the sandwich.
- Adjust the Sriracha to mayonnaise ratio if you prefer a milder or spicier sauce.
- Swap cheddar cheese with pepper jack or Swiss for a different twist.
Storage
For best taste, enjoy the sandwich fresh. If needed, store leftover ingredients separately in airtight containers in the refrigerator for up to 2 days. Reheat the eggs gently in a skillet over low heat to avoid overcooking, and toast the bun again before assembling.
How to Serve

Serve this delicious recipe with your favorite sides.
FAQs
Can I prepare the caramelized onions ahead of time?
Yes, caramelized onions can be made in advance and refrigerated for up to 3 days. Reheat gently before adding to the sandwich.
What can I use if I don’t have a brioche bun?
Any soft sandwich bun or a sturdy bread like a bagel, English muffin, or ciabatta will work well in place of a brioche bun.
PrintFairfax Breakfast Sandwich Recipe
The Fairfax Breakfast Sandwich is a flavorful morning staple featuring buttery caramelized onions, soft scrambled eggs infused with fresh chives, a spicy Sriracha mayo, and melted cheddar cheese, all nestled inside a toasted brioche bun. This sandwich offers a perfect balance of savory and spicy elements, ideal for breakfast or brunch lovers seeking a gourmet twist on a classic egg sandwich.
- Prep Time: 10 minutes
- Cook Time: 15 minutes
- Total Time: 25 minutes
- Yield: 1 sandwich 1x
- Category: Breakfast Sandwich
- Method: Stovetop
- Cuisine: American
Ingredients
For the Caramelized Onions
- 1 tbsp cooking oil
- 1 medium yellow onion, sliced
- 1/4 cup water
- 1 tbsp unsalted butter
- Salt, to taste
For the Scrambled Eggs
- 3 large eggs
- 1 tbsp unsalted butter
- 2 tbsp chives, thinly sliced
- Salt and pepper, to taste
For the Sauce
- 2 tbsp mayonnaise
- 1 tbsp Sriracha
For Assembly
- 1 brioche bun, sliced
- 1 slice cheddar cheese
- 2 tbsp unsalted butter (divided for toasting)
Instructions
- Caramelize the Onions: In a skillet over medium heat, heat the cooking oil and add the sliced onions with a pinch of salt and 1 tablespoon of butter. Spread the onions in a single layer, reduce heat to low, and cook while stirring often until the onions become soft and lightly golden. Add 1/4 cup of water to deglaze the pan and continue cooking until the onions are fully caramelized. Keep warm.
- Scramble the Eggs: Crack the eggs into an unheated skillet and use a spatula to scramble them until well blended. Add 1 tablespoon of butter and set the skillet over medium-low heat. Stir continuously, seasoning with a pinch of salt and pepper and the sliced chives. Cook until the eggs just start to set but remain soft. Remove from heat and keep warm.
- Make the Sauce: In a small bowl, combine the mayonnaise and Sriracha in a 2:1 ratio. Mix thoroughly to create a creamy, spicy sauce.
- Toast the Bun and Assemble: Butter both sides of the brioche bun and toast it in a skillet until golden brown. Spread the prepared Sriracha mayo evenly on both toasted sides. Layer the scrambled eggs on the bottom half of the bun, then gently melt the cheddar cheese on a nonstick pan and place it atop the eggs. Finish by adding 1-2 tablespoons of the warm caramelized onions before closing the sandwich and serving immediately.
Notes
- For sweeter caramelized onions, cook them low and slow, ensuring they do not burn.
- Adjust the amount of Sriracha in the mayo to your preferred spice level.
- Use a nonstick skillet to prevent eggs from sticking and to easily melt the cheese.
- The sandwich is best enjoyed fresh but can be wrapped and kept warm for up to 30 minutes.
- Optional: add avocado or bacon for additional flavor and texture.
Keywords: Fairfax Breakfast Sandwich, caramelized onion sandwich, scrambled egg sandwich, spicy breakfast sandwich, brioche bun, Sriracha mayo

