Step 1

In a food processor, combine fresh basil, Pecorino Romano cheese, and garlic.  Pulse until coarsely chopped.

Step 2

While running food processor on low, slowly add olive oil until mixture is well blended. Check the pesto mixture after adding the 1/4 cup of olive oil. Depending on how well you packed your basil, you may need a bit more olive oil, no more than 1/3 of a cup of olive oil.

Step 3

Season with the pepper and salt, to taste.

Step 4

Adjust seasoning if needed.