The phrase "tablespoon basil" refers to a measurement of an herb called basil. It means using a spoon that holds one tablespoon worth of basil leaves in a recipe.
Sentences with «tablespoon basil»
Stir remaining tablespoon basil and the cashew cream into the soup. (eatingrules.com)
Spread 1 1/2 tablespoons basil pesto on each naan. (cookincanuck.com)
Toss cherry tomatoes with 1 tablespoon basil dressing. (health.com)