Rashi on Leviticus
מרבכת means, scalded with hot oil to saturation (cf. Sifra, Tzav, Chapter 4 6).
Rashbam on Leviticus
מרבכת, softened with oil according to the requirements of the individual sacrifice. Seeing this had to be baked in an oven, it needed to be softened with oil.
Siftei Chakhamim
In an oven and thereupon fries it. [Rashi knows this] because it is written תופני which comprises the words תפי נא (baked raw), implying that it is uncooked. This teaches that it should be uncooked when he bakes it and not fried. Therefore, Rashi explains that it is baked originally and afterwards fried.