Instead of blending berries into pokéblocks, you now must cook berries into 'poffins'. Which are vaguely cookies? :x
The idea between them is still the same though, particular berries result in poffins that raise certain attributes, and the process creates textures and flavors to be givin to your team. I don't really like making poffins, as you have to stir the batter using the stylus when it cooks, and then you choose to either rotate it clockwise or counter-clockwise. Spin too fast? You start sloping over the side (- points). Spin too slowly? The batter begins to burn (- points). Basically, since the directional instructions change often, it's rather difficult to prolong the proper pace to avoid completely screwing it up, however people will eventually get the hang of it. It is more challenging than making simple pokéblocks though, I'll give it that.