Preheat your oven to 350°F and line a baking sheet with parchment paper to prevent sticking.
In a mixing bowl, combine the mashed banana and shredded coconut until a dough forms.
Using a cookie scoop or spoon, divide the dough into 10 portions, rolling each into a ball and placing them evenly on the prepared baking sheet.
Flatten each ball into a cookie shape with your fingers, then use a straw or chopstick to punch a hole in the center for the classic Samoa look. Reshape as needed.
Bake for 20 minutes, or until the cookies are lightly golden on top. Remove from the oven and let them cool fully.
Meanwhile, melt the chocolate chips with coconut oil in a microwave-safe dish. Heat in 20-30 second intervals, stirring in between, until smooth.
Dip the bottom of each cooled cookie into the melted chocolate, then drizzle the remaining chocolate over the tops for a beautiful finish.
Place the cookies in the freezer or refrigerator for 10-15 minutes to let the chocolate harden.
Enjoy immediately or store for later!