Ciabatta Steak Sandwich

This is one of the best sandwiches you will ever taste. This steak sandwich is served on airy, toasted ciabatta bread. It’s filled with juicy, tender ribeye slices, spread with creamy garlic aioli, sweetened by caramelized onions, and topped with refreshing arugula. All these components come together to create the ultimate steak sandwich. Although time-consuming, this ciabatta steak sandwich is absolutely worth the wait.

Ingredients

• 1 ribeye steak
• Ciabatta bread
• 2 onions
• 5 cloves garlic
• 3/4 cup mayonnaise
• 1/4 cup olive oil
• 1 tbsp lemon juice
• Salt
• Pepper
• Onion powder
• Arugula

Click on the images for the direct link to the ingredients I used:

Ciabatta Steak Sandwich Instructions

Caramelized Onions:

Slice two whole onions. Drizzle olive oil into a pan and add the onions.

Cook low and slow, stirring every few minutes.

After about 15 minutes, the onions will begin to turn golden.

Continue stirring for an additional 30–45 minutes to prevent burning.

You can add a pinch of salt during the last few minutes, or a splash of water to help them become jammy.

Garlic Aioli:

Smash 5 cloves of garlic with a bit of salt.

Add the garlic, mayonnaise, olive oil, lemon juice, and a little more salt.

Blend everything together until smooth. Set aside in the fridge.

Steak:

Preheat the oven to 250°F (120°C).

In a small bowl, combine salt, pepper, and onion powder. Mix well.

Generously season the steak on all sides.

Place the steak on a rack and bake for 20–25 minutes, or until the internal temperature reaches 110–115°F.

Remove the steak from the oven.

Heat a cast iron pan and sear the steak for 2–3 minutes per side (time will vary depending on thickness).

Sear the edges for 1 minute.

Remove from the pan and let it rest.

Slice the steak into pieces.

Bread:

Add butter and olive oil to a pan.

Slice the ciabatta bread and toast until golden brown.

Spread the garlic aioli on the toasted bread.

Add the caramelized onions.

Top with sliced steak.

Add arugula.

Finish with the top slice of bread.

Enjoy!

Ciabatta Steak Sandwich Cooking Tips

• Let the steak sit at room temperature for 30 minutes to ensure even heat distribution. Use a meat thermometer for the best results.
• Don’t rush the caramelization of the onions—be patient with the process, or you might burn them.
• For the garlic aioli, mash the garlic with salt to mellow out the strong flavor.
• Let the aioli sit in the fridge before serving to allow the flavors to develop.

You might also like my cajun shrimp pasta recipe if you enjoyed this ciabatta steak sandwich recipe.