Copycat Mr. Submarine Secret Sauce

This secret sauce recipe combines soybean oil and olive oil to create a balanced base with mild flavor and richness. Hot pepper juice, like that from pepperoncini peppers, adds a tangy heat, while oregano and garlic provide herbal and savory depth. Mixing all ingredients thoroughly by shaking helps emulsify the sauce for consistent flavor and texture. The result is a versatile sauce with subtle spiciness and herbal aroma.

The sauce can be used to add moisture and flavor to sandwiches, particularly sub-style sandwiches, or as a salad dressing component. It offers a gentle heat and savory herbiness without overwhelming the main ingredients. The combination of two oils provides a smooth mouthfeel and slight complexity.

For best results, shake the sauce well before use to ensure ingredients are evenly combined. Storing it in a refrigerated airtight container preserves freshness and flavor. If soybean oil is unavailable, canola or safflower oil are effective substitutions. Using a shaker or tightly sealed jar is recommended for mixing.