From BiblePortal Wikipedia

Morrish Bible Dictionary [1]

Several Hebrew words are used for 'cakes,' and they are often said to be mingled with oil. Those presented as a meat offering were to be unleavened, as typifying the Lord Jesus in His perfect humanity begotten of the Holy Spirit.  Leviticus 2:4;  Leviticus 7:12; etc. Ephraim (that is Israel) is compared to 'a cake not turned,'  Hosea 7:8 , as unpalatable, like the lukewarm, 'neither hot nor cold,' of  Revelation 3:16 .

Kitto's Popular Cyclopedia of Biblial Literature [2]

Cakes [BREAD]