01 -
Preheat your oven to 350°F (175°C). Grease an 8x8 inch baking pan.
02 -
In a large bowl, whisk together the flour, sugar, baking soda, ground cinnamon, and salt.
03 -
Make a well in the center of the dry ingredients and add the water, vegetable oil, vinegar, and vanilla extract. Mix until just combined and smooth.
04 -
Pour the batter into the prepared baking pan and spread it out evenly.
05 -
In a small bowl, mix together the sugar and ground cinnamon for the topping. Sprinkle it evenly over the top of the batter.
06 -
Bake in the preheated oven for 30-35 minutes, or until a toothpick inserted into the center of the cake comes out clean.
07 -
Allow the cake to cool in the pan on a wire rack before slicing and serving.