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, dark brown sugar, baking powder, baking soda, spice and salt.
210 g all-purpose flour, ½ teaspoon baking powder, ½ teaspoon baking soda, ½ teaspoon salt, 1 ½ teaspoon ground ginger, 1 ½ teaspoon ground cinnamon, ¼ teaspoon ground nutmeg, ¼ teaspoon ground cloves, 100 g dark brown sugar
In another mixing bowl add all of the wet ingredients, and with a hand whisk, whisk them together until combined.
110 g unsulphured molasses or dark glucose syrup, 240 g sour cream, 75 g vegetable oil, 2 large eggs, 1 ½ teaspoon vanilla extract
Pour the wet ingredients into the dry and stir it all together with a hand whisk. Make sure there is no dry flour left in the batter.
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.