Here's what you will need to make this:
1/2 cup extra virgin olive oil
1/4 cup freshly squeezed lemon juice (NEVER substitute the juice that comes in a bottle)
1 teaspoon dried oregano
1 garlic clove, finely minced
sea salt and freshly ground black pepper to taste
Combine all of the ingredients in a bowl or even in a small jar. Whisk or shake (if using a jar) and serve!
It's also a delicious dipping sauce for nice crusty warm bread.