01 - Preheat the oven to 350°F. Line two baking sheets with parchment paper.
02 - In a large bowl, whisk together the melted coconut oil and sugar until smooth.
03 - Add the calamansi juice, plant milk, and vanilla extract. Whisk until fully combined.
04 - In a separate bowl, sift together the flour, baking powder, baking soda, and salt.
05 - Gradually add the dry ingredients to the wet mixture, stirring until a soft dough forms.
06 - In a small bowl, combine the dusting sugar and calamansi zest.
07 - Scoop tablespoon-sized amounts of dough and roll into balls. Roll each ball in the sugar-zest mixture to coat.
08 - Place cookies on the prepared baking sheets about 2 inches apart. Gently flatten each cookie with your palm or a glass bottom.
09 - Bake for 11–13 minutes, or until the edges are lightly golden.
10 - Allow cookies to cool on the baking sheet for 5 minutes, then transfer to a wire rack to cool completely.