Step 1: Preheat your oven to 350°F (175°C).
Step 2: Grease an 8x8 inch or 9x9 inch baking pan with coconut oil or line it with parchment paper.
Step 3: In a large mixing bowl, beat together coconut oil and granulated sugar until smooth and creamy. Add in egg, vanilla extract, and coconut extract. Mix until fully combined.
Step 4: In another bowl, whisk together flour, baking soda, cream of tartar, and salt.
Step 5: Gradually add the dry ingredients to the wet mixture, mixing until just combined.
Step 6: Spread the batter evenly into the prepared baking pan. Bake for about 20-25 minutes, or until the edges are lightly golden.
Step 7: Once baked, let it cool on a wire rack before frosting.
Step 8: In a mixing bowl, combine coconut oil, a pinch of salt, powdered sugar, vanilla extract, coconut extract, and coconut milk. Mix until smooth.
Step 9: Once the bars are completely cooled, spread the frosting evenly over the top and sprinkle with shredded sweetened coconut.
Step 10: Cut into squares, serve, and enjoy!
