Preheat your oven to 350°F (175°C) and line a 12-cup muffin tin with cupcake liners.
In a large mixing bowl, combine the all-purpose flour, unsweetened cocoa powder, granulated sugar, baking soda, and salt. Whisk together thoroughly.
In a separate bowl, whisk together the vegetable oil (or melted coconut oil), vanilla extract, almond milk, and apple cider vinegar. Allow to sit for about 5 minutes.
Gently pour the wet ingredients into the dry ingredients. Stir until just combined, being cautious not to overmix. Fold in the dairy-free chocolate chips if using.
Divide the batter evenly among the cupcake liners, filling each about two-thirds full.
Bake in the preheated oven for 18-20 minutes. Check for doneness with a toothpick.
Let the cupcakes cool in the tin for 5 minutes before transferring them to a wire rack to cool completely.
Notes
For an elegant touch, dust with powdered sugar or top with vegan frosting and chocolate shavings.