Preheat the oven to 350 °F (175 °C) and line two muffin pans with a total of 16 cupcake liners.
In a large mixing bowl, stir together the almond milk and vinegar. Let sit for 5 minutes. Then stir in the melted coconut oil, brown sugar, granulated sugar, vanilla extract and espresso powder.
1 1/2 cups (355 ml) unsweetened almond milk, 1 1/2 teaspoons white vinegar, 1/2 cup (113 grams) melted refined coconut oil, 2/3 cup (133 grams) brown sugar, 1/2 cup (100 grams) granulated sugar, 2 teaspoons vanilla extract, 1 teaspoon espresso powder
In a medium mixing bowl, stir together the flour, cocoa powder, baking soda, baking powder and salt. Add this to the wet mixture and stir just until combined.
1 1/2 cups (188 grams) flour, 1/2 cup (58 grams) Dutch-process cocoa powder, 1 1/4 teaspoons baking soda, 3/4 teaspoon baking powder, 1/2 teaspoon salt
Fill the liners slightly more than half-way full and bake for 16-18 minutes or until a toothpick inserted in the middle comes out clean or with some moist crumbs (not raw batter). Let cool for 5 minutes and then turn out onto a wire rack to cool completely.