Method
Preheat the oven to 350°F (175°C). Lightly grease an 8-inch round cake pan and line the bottom with parchment paper.
In a large mixing bowl, whisk together the flour, sugar, baking soda, and salt until well combined.
In a separate bowl, combine the almond milk, vegetable oil, vinegar, and vanilla extract. Stir until fully mixed.
Pour the wet ingredients into the dry ingredients and whisk until the batter is smooth and no lumps remain. Be careful not to overmix.
Pour the batter into the prepared cake pan and smooth the top with a spatula.
Bake in the preheated oven for 25 to 30 minutes, or until a toothpick inserted into the center comes out clean.
Let the cake cool in the pan for 10 minutes, then gently transfer it to a wire rack to cool completely before serving.