Note: The cupcake recipe has been updated the 22th of August. See the old recipe in the notes below.
Preheat the oven at 160ºC/320ºF conventional oven and line a cupcake tray with 12 cupcake liners.
In a large bowl, sift together the all-purpose flour, cinnamon, baking powder, baking soda, and salt. Then stir it together with the granulated sugar and dark brown sugar, using a hand whisk.
100 g granulated sugar, 100 g dark brown sugar, 210 g all-purpose flour, ½ teaspoon baking powder, ½ teaspoon baking soda, ½ teaspoon salt, 2 teaspoon cinnamon
In another mixing bowl add all of the wet ingredients, and with the hand whisk, whisk them together until combined.
2 large eggs, 240 g sour cream, 75 g vegetable oil, 1 ½ teaspoon vanilla extract
Pour the wet ingredients into the dry and stir it all together. Make sure there is no dry flour left in the batter. The batter might seem a bit thick in the start to mix together, but it will mix nicely together.
Divide the cupcake batter into the 12 cupcake liners and bake them for 20-22 minutes or until a cake tester comes out clean.
Let the cupcakes cool on a cooling rack. After 5 minutes, gently remove the cupcakes from the cupcake tray and let them cool down completely.