Step 1

Prepare the tuna: In the bowl of a food processor fitted with an S blade, add the tuna, anchovies, capers, garlic, and lemon juice. Close the lid and blend on low speed until the mixture has been ground into a paste, 1 to 2 minutes. Pause and scrape the bottom and sides as needed.

Step 2

Add the olive oil: With the food processor running, pour in the olive oil in a slow, steady drizzle through the top opening until you have a rich sauce to your preferred consistency (see note). Continue blending until smooth, 1 to 2 minutes. Add the salt and freshly ground black pepper to taste.

Step 3

Serve: Serve as a sauce or a dip on roasted meat, steamed or roasted veggies, crudités, or bread.