01 -
Set your oven to preheat at 350°F. Grease the cups of a mini muffin pan generously with softened butter so the bites release easily later on.
02 -
Make a DIY double boiler by putting a heat-safe bowl over a pot with a little simmering water. Drop in your bittersweet chocolate and oil, stirring until it’s completely smooth and melted. Leave it to cool a bit while you handle the next step.
03 -
Drop your eggs, vanilla, and sugars into a large bowl. Use a mixer on high for about 5-6 minutes until the mixture turns fluffy, doubles in volume, and lightens in color. Don’t skip this—it’s what gets you that perfect crackly top!
04 -
Slowly pour your slightly cooled chocolate-and-oil combo into the whipped egg mixture while you keep the mixer on low. Blend until it transforms into a smooth batter.
05 -
Toss in flour, the cocoa powders, salt, and espresso powder. Stir gently and stop once it’s just mixed in. Overmixing can mess up the texture!
06 -
Stir in the chopped bittersweet chocolate pieces until they’re evenly spread through the batter using a spatula.
07 -
Spoon or pipe your batter into the muffin pan, filling each cup about ¾ of the way up to allow for a gentle rise.
08 -
Pop the pan into your hot oven and bake for around 15-18 minutes. They’re done when a toothpick stuck in comes out with only a few soft crumbs clinging to it. Don’t overdo it, or you’ll lose that fudgy texture!
09 -
Take the bites out of the oven and let them cool in the pan a bit before carefully removing. Let them finish setting as they cool. Bake the rest of the batter in batches.