Za'atar is an herb blend customarily added to olive oil and typically has a savory, nutty, and herbaceous character that helps elevate bread dipping oil.
The mix of balsamic vinegar and olive oil is a marriage made in culinary heaven. It is arguably one of the most common dipping oils in Italian cuisine.
The fruity yet acidic sharpness of balsamic vinegar cuts right through the oil, elevating both flavors, while the sweetness of the vinegar rounds out the taste very well.
Take extra time to crush or chop the olives roughly with a knife. This allows their flavor to infuse into the oil and make it easier to pick up bits when dipping with the bread.