Whisk together the vegetable oil, sugar and salt.

Add the egg and mix again.

Pour in the calamansi juice and vanilla extract. Mix together.

Once the wet ingredients are combined, add the flour, baking powder and baking soda.

Mix together until there are no dry bits left and the dough is homogeneous.

Chill the dough for 1 hour.

Preheat the oven to 180 degrees Celcius.

Scoop out 1 tablespoon of dough and roll it into a ball. Generously coat each ball in powdered sugar.

Place them 2 inches apart on a lined baking sheet and bake for 10-12 minutes or until the tops have cracked.

Let the crinkles cool on the baking sheet for at least 10 minutes before transferring to a serving plate or cooling rack.