Preheat your oven to 350°F (175°C) and prepare a heart-shaped pan by coating it with non-stick spray or lining it with parchment paper.

In a large bowl, whisk together the flour, cocoa powder, baking powder, and salt until smooth.

In another bowl, mix the non-dairy milk, maple syrup, vegetable oil, and vanilla extract until well combined.

Pour the wet mixture into the dry ingredients and stir until just combined; avoid overmixing.

Transfer the batter into the prepared pan and smooth the top. Bake for 30-35 minutes or until a toothpick inserted in the center comes out clean.

Allow cooling for about ten minutes before transferring to a wire rack. Once cool, decorate as desired.