In a separate large bowl whisk together the cake flour, remaining 1 cup of sugar, baking powder, and salt. Add the vegetable oil, coconut milk, egg yolks, vanilla, and coconut extract. Using an electric mixer beat for 2 minutes at medium speed.
2 1/4 cup cake flour, 3 tsp baking powder, 1 teaspoon salt, 1 cup coconut milk, canned, 1/3 cup vegetable oil, 1 tsp pure vanilla extract, 1 tsp coconut extract