01 -
Set oven to 175°C and line a 12-cup muffin pan with paper liners.
02 -
Combine milk, bananas, and spinach in a high-powered blender and process until mostly smooth. A few lumps are acceptable. Transfer to a large mixing bowl.
03 -
Add the egg to the banana-spinach mixture and lightly whisk. Stir in sugar, vanilla extract, Greek yogurt, and oil until well combined.
04 -
In a separate bowl, whisk together flour, baking soda, cocoa powder, and sea salt.
05 -
Gradually fold the dry ingredient mixture into the wet ingredients until just combined. Stir in dark chocolate chips, reserving some for topping if desired.
06 -
Spoon batter evenly into the prepared muffin pan. Sprinkle additional chocolate chips on top of each muffin if desired.
07 -
Bake for 18–22 minutes, or until a toothpick inserted into the centre comes out clean.
08 -
Allow muffins to cool in the pan for several minutes before transferring to a rack to finish cooling. Serve warm or at room temperature.