Preheat oven to 350* F. Line a cupcake tin with 12 paper liners.
In a medium bowl, combine flour, baking powder, cinnamon and salt. Whisk and set aside.
1 ½ Cups All-Purpose Flour, 2 teaspoon Baking Powder, 1 ½ teaspoon Cinnamon, ¼ teaspoon Kosher Salt
In a large bowl, combine brown sugar, non-dairy milk, melted vegan butter, Biscoff spread, vanilla and vinegar. Whisk well, until the Biscoff spread is completely mixed in. Then, add the dry ingredients and whisk until combined.
1 Cup Light Brown Sugar, tightly packed, ¾ Cup Non-Dairy Milk, 6 tablespoon Vegan Butter, melted, ⅓ Cup Biscoff Spread, 2 teaspoon Vanilla Extract, 1 teaspoon Vinegar
Use a spoon or an ice cream scoop to portion the batter into a prepared cupcake pan, filling each liner ⅔ of the way full. Then, bake in a 350*F oven for 20-23 minutes, or until a toothpick inserted into the center of a cupcake comes out clean. Allow the cupcakes to cool in the pan for 10 minutes, then transfer to a wire cooling rack to cool completely.