The muffins are done when the tops are set, look dry, and have a slight crackle to them. A toothpick inserted into the center (avoiding a chocolate chip) should come out mostly clean, perhaps with a few moist crumbs. They will look puffed up but will deflate slightly as they cool—this is normal and creates that dense, fudgy texture. I let them cool in the pan for 10 full minutes before transferring them to a cooling rack. This patience prevents them from tearing.
Pro Tips for Best Results
My number one tip is to blend the batter until it is absolutely smooth. I tested this three different ways: a quick 30-second blend, a full minute, and then a full minute with a scrape-down and another 30-second blend. The difference was stark. The less-blended batter had a faint graininess and a more pronounced bean aftertaste. The ultra-smooth batter was pure, rich chocolate. Trust your blender and let it run. You shouldn’t see a single speck of bean skin.
Don’t skip the step of folding in the chocolate chips separately. I made the mistake of just throwing them all into the blender once. They got chopped up into tiny fragments that melted completely during baking. While still chocolatey, the muffins missed those delightful, gooey pockets you get from a whole, melted chip. Reserving some for the top also gives them that classic, bakery-style look that makes them instantly appealing.
These muffins benefit from a brief rest. I know it’s hard to wait, but they set and firm up significantly as they cool. The texture transforms from good to great—becoming more brownie-like and less custardy. If you can manage it, letting them cool completely is ideal. The flavor also seems to deepen and meld after an hour or two. I often make them in the morning for an afternoon snack.
Common Mistakes to Avoid
The most common mistake is not rinsing the beans thoroughly. I made this error in an early test, thinking a quick rinse was enough. The leftover aquafaba (the starchy can liquid) made the muffins taste, well, beany. It was a subtle off-note that ruined the chocolate illusion. Now, I rinse them in a colander under cold water, swishing them with my hands, for a good 60 seconds until the water runs perfectly clear. This step is non-negotiable for pure chocolate flavor.(See the next page below to continue…)