In a large bowl, whisk together all of the dry ingredients until well combined.
Add the vegetable oil, water, and plant milk to the dry ingredients.
Mix until smooth and fully incorporated.
Line a muffin tin or cupcake maker with liners and fill each about ¾ full.
For the Oven:
Bake at 350°F for 25 minutes, or until a toothpick inserted in the center comes out clean.
For the Cupcake Maker:
Line the cupcake maker before plugging it in. Fill liners, close the lid, plug it in, and cook for about 10 minutes, or until set.
Let cupcakes cool completely, then frost and decorate as desired.