There’s something truly special about the taste of a classic sub sandwich, and at the heart of that delightful experience is often a secret sauce that elevates each bite. If you’ve ever found yourself craving the unique flavor of Mr. Submarine’s legendary sauce, you’re in for a treat! This recipe will bring that authentic sub shop flavor to your kitchen, allowing you to whip up delicious subs right at home. With just a few simple ingredients, you can create a sauce that will have your family and friends raving.
Why I Love This Recipe

This Copycat Mr. Submarine Secret Sauce is not just about replicating a beloved flavor; it’s about the joy of creating something from scratch. There’s a certain satisfaction that comes from mixing ingredients together and transforming them into something delicious. Each time I make this sauce, it reminds me of cozy sub shops and the comforting meals enjoyed with loved ones. Plus, it’s incredibly versatile! You can use it for sandwiches, as a dip, or even drizzled over salads.
What You’ll Gather
- 4 cups soybean oil: This serves as the base of your sauce, providing a smooth, rich texture.
- 1 cup olive oil: Adds a depth of flavor and a hint of fruitiness to balance the soy oil.
- 1 1/2 cups juice from a jar of hot peppers: For that signature kick, choose something like the juice from pepperoncini.
- 1 teaspoon oregano: A touch of this herb enhances the overall flavor profile.
- 1 teaspoon garlic: Fresh garlic will add a punch of flavor that complements the other ingredients beautifully.
Recommended Tools
- Large mixing bowl: You’ll need this for combining your ingredients smoothly.
- Whisk: A whisk is essential for blending the oils and spices together.
- Measuring cups and spoons: Accurate measurements are key to getting the flavor just right.
- Storage container: A jar or bottle to keep your secret sauce fresh in the refrigerator.
Copycat Mr. Submarine Secret Sauce: Authentic Sub Shop Flavor: From Prep to Plate

Step 1: Gather Your Ingredients
Start by gathering all your ingredients on the kitchen counter. Having everything at hand will make the mixing process smooth and easy.
Step 2: Combine the Oils
In a large mixing bowl, pour in the 4 cups of soybean oil along with 1 cup of olive oil. Using a whisk, blend the oils together until they are well combined and slightly emulsified.
Step 3: Add the Hot Pepper Juice
Next, slowly add in the 1 1/2 cups of hot pepper juice. This is what gives the sauce its signature tangy and spicy flavor. Continue to whisk until the mixture is fully integrated.
Step 4: Incorporate the Spices
Sprinkle in the teaspoon of oregano and the teaspoon of garlic. Again, whisk thoroughly to ensure that the spices are evenly distributed throughout the sauce.
Step 5: Taste and Adjust
This is where you can make it your own! Taste the sauce and adjust the flavors to your liking. If you prefer more spice, feel free to add a bit more hot pepper juice or even some crushed red pepper flakes.
Step 6: Store Your Sauce
Transfer the sauce into a storage container. Seal it tightly and store it in the refrigerator for at least an hour before using, allowing the flavors to meld and develop.
Holiday & Seasonal Touches

- Add a splash of cranberry juice during the holidays for a festive twist.
- Mix in some fresh chopped herbs like parsley or basil during summer for a refreshing flavor.
- Incorporate seasonal spices like smoked paprika in the fall for a warm, cozy flavor.
- Serve the sauce with holiday appetizers or as a dipping sauce for seasonal veggies.
Errors to Dodge
- Using oils that are too strong in flavor can overpower the sauce. Stick to soybean oil and a lighter olive oil.
- Neglecting to taste and adjust the sauce can lead to a lackluster flavor.
- Not allowing the sauce to chill can result in a less cohesive flavor.
- Skipping the whisking step can leave you with an unevenly mixed sauce.
Save It for Later
This Copycat Mr. Submarine Secret Sauce can be stored in the refrigerator for up to two weeks. Simply give it a good shake or stir before using it again. You can also double the recipe to have plenty on hand for all your sub-making adventures!
Your Questions, Answered
Can I use a different type of oil?
Yes! While soybean and olive oils are ideal for this recipe, you can experiment with other neutral oils. Just keep in mind that the flavor profile may change slightly.
How spicy is this sauce?
The spice level depends on the type of hot pepper juice you use. If you prefer a milder sauce, you can dilute the hot pepper juice with a little water or use a less spicy variety.
Can I make this sauce vegan?
This recipe is already vegan-friendly since it uses plant-based ingredients. Enjoy without any concerns!
What dishes can I use this sauce with?
This sauce is not just for subs; it’s fantastic on burgers, as a salad dressing, or even as a dip for veggies and chips. Try it with a Corned Beef Sandwich for an extra flavor kick!
See You at the Table
As you dive into making your very own Copycat Mr. Submarine Secret Sauce, I hope you feel the same excitement and nostalgia that comes with each ingredient and step. This sauce is more than just a condiment; it’s a way to bring the joy of sub shops right into your home. Whether you’re hosting a get-together, preparing a cozy meal for your family, or just treating yourself, this sauce will deliver that authentic flavor that makes every bite special. Enjoy the process, and I can’t wait to see what delicious creations you whip up with this recipe!

Copycat Mr. Submarine Secret Sauce: Authentic Sub Shop Flavor
Ingredients
Equipment
Method
- Gather all your ingredients on the kitchen counter.
- In a large mixing bowl, pour in the soybean oil and olive oil. Whisk until well combined.
- Slowly add in the hot pepper juice, whisking until fully integrated.
- Sprinkle in the oregano and garlic, whisking thoroughly to distribute.
- Taste the sauce and adjust flavors as desired.
- Transfer the sauce to a storage container and refrigerate for at least an hour before using.
Notes
- Store the sauce in the refrigerator for up to two weeks.
- Double the recipe for ample sauce during gatherings.
- Experiment with different oils for unique flavors.
