Rif Pesachim 11a {Pesachim 37a continues}

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11a

{Pesachim 37a continues}
The Sages learnt {in a brayta}: Honey cakes, sponge cakes {our gemara has the order reversed}, paste-balls {made from a very loose dough}, cakes made in a mold, and mixed dough {chullin dough into which fell some terumah} are all exempt from challah.
{our gemara clarifies that the next statements are regarding the definition of "cakes made in a mold"}
Rabbi Shimon ben Lakish said: These are prepared in an ilpes {a tightly covered stew-pot, and are thus not bread at all}.
And Rabbi Yochanan said: That which is prepared in an ilpes is liable to challah. Rather, these are prepared in the sun.

All agree -- both Rabbi Yochanan and Rabbi Shimon ben Lakish -- where he first heated it {the ilpes} and then placed it {=placed the dough in it} that it is liable to challah, for it is considered bread. When do they argue? When he first placed it and then heated it. Rabbi Shimon ben Lakish holds that they are like that which is prepared in the sun, and Rabbi Yochanan holds that they are like that which is prepared in an ilpes.

And it does not matter if he first heated it and subsequently placed it