Leviticus 7:12
7:12 If he presents it on account of thanksgiving, along with the thank offering sacrifice he must present unleavened loaves mixed with olive oil, unleavened wafers smeared with olive oil, and well soaked ring-shaped loaves made of choice wheat flour mixed with olive oil.
Leviticus 8:26
8:26 and from the basket of unleavened bread that was before the Lord he took one unleavened loaf, one loaf of bread mixed with olive oil, and one wafer, and placed them on the fat parts and on the right thigh.