In a medium-sized mixing bowl, combine all truffle : firm coconut oil, coconut butter, chilled full-fat coconut milk, matcha powder, cinnamon, sea salt, and vanilla extract. It's crucial that your coconut oil and milk are solid, so ensure they are well-chilled before you begin.
Using a hand mixer on high speed, beat the mixture until it becomes light, airy, and fluffy.
Place the bowl in the refrigerator and chill for approximately one hour, or until the mixture is firm enough to scoop.
While the truffle base is chilling, prepare the coating.
In a large, shallow dish, whisk together the finely shredded coconut and the matcha powder until evenly combined.
Set aside.
Once firm, use a small cookie scoop to portion the chilled mixture into 32 evenly-sized balls, roughly the size of a ping-pong ball.
Quickly roll each portion between the palms of your hands to form a smooth sphere. Immediately drop the truffle into the matcha-coconut coating and roll gently until it's completely covered.
Transfer the finished truffles to an airtight container. Store in the refrigerator for up to 2 weeks.