Copycat Mr. Submarine Secret Sauce: Authentic Sub Shop Flavor
If you’ve ever taken a bite of a sub sandwich from a classic sub shop and wondered what makes it so irresistibly delicious, you’re not alone. The secret often lies in the sauce — a zesty, flavorful blend that takes your sandwich experience to another level. Today, I’m excited to share with you my version of the Copycat Mr. Submarine Secret Sauce: Authentic Sub Shop Flavor. This sauce is perfect for drizzling over your favorite subs, and it packs a punch of flavor that will remind you of your favorite sandwich shop.
This recipe is super simple and requires just a handful of ingredients that you might already have in your pantry. The combination of soybean oil, olive oil, and the tangy juice from hot peppers creates a rich base that is perfectly complemented by the aromatic oregano and garlic. Now, let’s dive into what sets this recipe apart and how you can recreate it at home.
What Sets This Recipe Apart

What makes this Copycat Mr. Submarine Secret Sauce: Authentic Sub Shop Flavor stand out is its balance of creaminess and tanginess. While many sauces can be overpowering, this one strikes a harmonious note that enhances your sandwich without overwhelming it. The use of both soybean and olive oils gives it a unique texture, while the hot pepper juice adds that unmistakable kick. This sauce is versatile enough to be used not just for subs, but also as a salad dressing or a dip for veggies.
Shopping List
- 4 cups soybean oil
- 1 cup olive oil
- 1 1/2 cups juice from a jar of hot peppers (such as pepperoncini)
- 1 teaspoon oregano
- 1 teaspoon garlic (freshly minced is best)
Equipment at a Glance
- Mixing bowl – For combining all the ingredients.
- Whisk – To ensure everything is well blended.
- Glass jar or bottle – For storing your sauce.
- Measuring cups and spoons – For accurate measurements.
Copycat Mr. Submarine Secret Sauce: Authentic Sub Shop Flavor — Do This Next

Step 1: Gather Your Ingredients
Start by gathering all your ingredients. Make sure you have fresh soy and olive oils, along with the hot pepper juice, oregano, and garlic.
Step 2: Combine Oils
In a large mixing bowl, pour in the 4 cups of soybean oil along with the 1 cup of olive oil. Whisk together until well combined and smooth.
Step 3: Add Hot Pepper Juice
Next, add in the 1 1/2 cups of juice from your jar of hot peppers. This will add the essential flavor and tang to your sauce.
Step 4: Mix in Seasonings
Sprinkle in the 1 teaspoon of oregano and the 1 teaspoon of minced garlic. Whisk again until all ingredients are fully incorporated.
Step 5: Taste and Adjust
Give your sauce a taste. If you prefer a spicier kick, you can add more hot pepper juice or a pinch of cayenne pepper.
Step 6: Store the Sauce
Transfer your Copycat Mr. Submarine Secret Sauce: Authentic Sub Shop Flavor into a glass jar or bottle. Seal tightly and refrigerate. Let it sit for at least an hour before using to allow the flavors to meld beautifully.
How to Make It Lighter

- Substitute half of the soybean oil with unsweetened apple sauce for a lighter version.
- Reduce the amount of olive oil to 1/2 cup instead of 1 cup.
- Use less hot pepper juice for a milder flavor if desired.
- Incorporate fresh herbs like cilantro or parsley for added flavor without extra calories.
Cook’s Commentary
This sauce is incredibly versatile. I love using it on everything from classic Italian subs to veggie-packed hoagies. It brings a burst of flavor that elevates any sandwich. Plus, it’s super easy to whip up, and once you have it made, you can keep it in your fridge for weeks. The longer it sits, the better it gets as the flavors continue to develop.
- Feel free to experiment with different types of hot pepper juice to find your perfect flavor combination.
- This sauce can also be used as a marinade for grilled meats or veggies.
Leftovers & Meal Prep
This Copycat Mr. Submarine Secret Sauce: Authentic Sub Shop Flavor is perfect for meal prep. It stores well in the refrigerator for up to two weeks. Just make sure to give it a good shake or stir before using, as the ingredients may separate over time. You can easily double or triple the recipe to have enough sauce on hand for multiple meals throughout the week. It’s a great way to add flavor to quick lunches or weeknight dinners.
Your Top Questions
Can I use different types of oil for this sauce?
Absolutely! While soybean and olive oil provide a nice balance, you can experiment with other oils like avocado oil or canola oil for different flavor profiles.
How spicy is this sauce?
The spice level can vary depending on the type of hot pepper juice you use. If you prefer a milder sauce, start with less hot pepper juice and adjust to your taste.
Can I freeze this sauce?
Freezing is not recommended as the texture may change once thawed. It’s best enjoyed fresh or stored in the refrigerator.
What sandwiches do you recommend pairing this sauce with?
This sauce is a fantastic addition to any sub, especially Italian subs, turkey sandwiches, or even veggie hoagies. It also works well as a dressing for pasta salads!
Ready to Cook?
Now that you have the recipe for Copycat Mr. Submarine Secret Sauce: Authentic Sub Shop Flavor, it’s time to get in the kitchen and whip up a batch. Whether you’re packing lunches for the week or hosting a gathering, this sauce will impress everyone at the table. So grab your ingredients, follow the steps, and enjoy the deliciousness that awaits you!

Copycat Mr. Submarine Secret Sauce: Authentic Sub Shop Flavor
Ingredients
Equipment
Method
- Start by gathering all your ingredients. Make sure you have fresh soy and olive oils, along with the hot pepper juice, oregano, and garlic.
- In a large mixing bowl, pour in the 4 cups of soybean oil along with the 1 cup of olive oil. Whisk together until well combined and smooth.
- Next, add in the 1 1/2 cups of juice from your jar of hot peppers. This will add the essential flavor and tang to your sauce.
- Sprinkle in the 1 teaspoon of oregano and the 1 teaspoon of minced garlic. Whisk again until all ingredients are fully incorporated.
- Give your sauce a taste. If you prefer a spicier kick, you can add more hot pepper juice or a pinch of cayenne pepper.
- Transfer your Copycat Mr. Submarine Secret Sauce into a glass jar or bottle. Seal tightly and refrigerate. Let it sit for at least an hour before using to allow the flavors to meld beautifully.
Notes
- This sauce can be used as a salad dressing or dip for veggies.
- Store in the refrigerator for up to two weeks.
- Feel free to experiment with different types of hot pepper juice for varied flavors.
