Preheat the oven to 350°F. Lightly grease and line 2 8" round cake pans with parchment paper.
In a large mixing bowl, whisk together the flour, baking powder, baking soda and salt.
Blend tofu until very smooth and no lumps remain. Add milk, apple cider vinegar, oil and vanilla extract; blend until everything is well combined and has a texture of heavy cream.
Add the tofu mixture to the dry ingredients and mix until combined. Stir in the confetti and mix well.
Divide the batter between the prepared pans.
Bake until a cake tester inserted in the center comes out clean, about 30~35 minutes. Remove from the oven.