Preheat your oven to 350°F (175°C).
Grease and flour two ramekins.
In a large bowl, whisk together the flour, granulated sugar, cocoa powder, baking powder, baking soda, and salt.
In another bowl, mix the dairy-free buttermilk, melted coconut oil, red food coloring, and vanilla extract until smooth.
Add the wet ingredients to the dry ingredients, mixing until just combined.