Subway Garlic Aioli Recipe (Copycat)

This subway garlic aioli recipe turns three pantry staples into the creamy, garlicky sauce you keep ordering on your sandwich. It comes together in the time it takes to toast your bread, no cooking required.

Once you taste how close it gets to the real thing, you’ll probably stop buying the bottled stuff.

Why I Love This Recipe

This one lives or dies on the garlic, and using fresh cloves instead of powder gives it a sharp bite that mellows into something rounder as it sits.

The olive oil is what makes it taste like more than plain garlic mayo. It adds a slight peppery edge that coats the back of your tongue.

It’s also just faster than driving to Subway, which counts for something on a weeknight.

Recipe Ingredients

• 1 cup mayonnaise – use a full-fat one you’d actually eat off a spoon, like Duke’s or Hellmann’s
• 4 cloves garlic, finely grated – fresh only here, it’s the whole point of the sauce
• 2 tbsp olive oil – a decent extra-virgin one, this is what gives it that peppery finish
• 1 tbsp fresh lemon juice – cuts the richness so it doesn’t taste flat
• 1/2 tsp Dijon mustard – helps everything hold together and adds a quiet tang
• 1/2 tsp sugar – balances the garlic’s sharpness, don’t skip it
• 1/2 tsp salt
• 1/4 tsp black pepper, plus more for garnish

Variations / Substitutions

• Egg-free mayo swap – use an avocado oil or egg-free mayo base and the aioli turns out just as creamy, with a slightly milder taste.
• Honey instead of sugar – swap the 1/2 tsp sugar for 1/2 tsp honey for a softer, rounder sweetness.
• Add fresh herbs – stir in 1 tbsp chopped chives or parsley at the end for flecks of green and a grassy note.
• Bring the heat – a pinch of cayenne or a few drops of hot sauce turns this into a solid spread for spicy chicken sandwiches.
• Swap the acid – white wine vinegar in place of the lemon juice gives a sharper, less fruity tang.

If you like this one, my Homemade Chipotle Mayo recipe uses the same base with a smokier finish.

How To Make Subway Garlic Aioli

Step 1: Grate the Garlic

Peel the 4 cloves of garlic and grate them on a microplane or the fine side of a box grater rather than mincing with a knife. This takes about 1 minute and breaks the cloves down into a near-paste, which spreads through the sauce evenly instead of leaving chunky bites.

You’ll notice the smell gets sharp and a little sting hits your eyes. That’s normal, and it’s a good sign the garlic is fresh and doing its job.

Step 2: Whisk the Base

In a medium bowl, whisk together the 1 cup mayonnaise, grated garlic, 1 tbsp lemon juice, 1/2 tsp Dijon mustard, 1/2 tsp sugar, 1/2 tsp salt, and 1/4 tsp black pepper. Whisk for about 30 seconds, until the mixture turns a pale, even color with no white streaks of plain mayo left.

The texture should already look thick and glossy at this point. If it looks streaky or loose, give it another 15 seconds of whisking.

Step 3: Drizzle in the Oil

Slowly drizzle in the 2 tbsp olive oil while whisking constantly, adding it in a thin stream rather than all at once. This takes about 20 seconds and thickens the sauce further, giving it that restaurant-style sheen.

Whisking while you pour keeps the oil from pooling on top and separating later. If you dump it in all at once, the sauce can look slightly greasy instead of smooth, so take it slow here.

Step 4: Swirl and Serve

Taste the aioli and add a small pinch more salt if it needs it, then transfer it to a small serving bowl. Use the back of a spoon to swirl the surface into a shallow well.

Finish with a light drizzle of olive oil and a few cracks of black pepper right in the center. It’s ready to spread on a sandwich or serve alongside fries while the swirl is still visible.

Recipe Tips

• Let the aioli sit in the fridge for 15 to 30 minutes before using it. The garlic mellows and the flavors settle instead of tasting sharp and separate.
• If jarred minced garlic is all you have, use 1 tsp as a substitute for the 4 fresh cloves, but expect a flatter, less punchy flavor.
• If the sauce ever looks thin or slightly split, whisk in another 1 tsp of mayo off the heat to bring it back together.
• Double the batch if you’re making sandwiches for a crowd. It keeps well and saves you from running out halfway through lunch.

Scale it up if you’re feeding more people or making a bigger batch to keep on hand:

Batch Size	Mayonnaise	Garlic	Olive Oil
Single	1 cup	4 cloves	2 tbsp
Double	2 cups	8 cloves	4 tbsp
Half	1/2 cup	2 cloves	1 tbsp

How To Store

Refrigerate: Keep the aioli in an airtight container or a jar with a tight lid for up to 5 days. The flavor actually improves after the first day as the garlic settles in.

Serve Cold: This sauce is meant to be served straight from the fridge, so there’s no need to bring it to room temperature first.

What To Serve With Subway Garlic Aioli

This is built for sandwiches, so spread it on toasted sub rolls under turkey, ham, or grilled chicken where it adds richness without overpowering the meat. It also works well as a dip for crispy fries or roasted potato wedges, since the garlic cuts through the salt and grease.

For something lighter, dollop it over grilled vegetables like zucchini or asparagus. The char on the vegetables plays well against the cool, garlicky sauce.

Frequently Asked Questions

Can I use garlic powder instead of fresh?

You can, but the flavor will be flatter and less sharp. Use 1/2 tsp garlic powder in place of the fresh cloves and expect a milder, more muted result.

Is this exactly the same as Subway’s aioli?

It’s very close in flavor and texture, but Subway’s version uses soybean oil and a slightly different blend of spices. This copycat gets you the same garlicky, tangy profile using ingredients you likely already have.

Can I make this vegan?

Yes, just use a plant-based mayo as your base and the rest of the recipe stays exactly the same. The texture and flavor hold up well with most vegan mayo brands.

Why does my aioli taste bitter?

This usually means the garlic sat too long before mixing or was slightly old. Use fresh, firm cloves and mix the sauce within a few minutes of grating for the best flavor.