In a medium bowl whisk together the flour, salt, and baking powder.

In a big bowl, beat the butter and sugar until creamy using a hand mixer (about 2 to 3 minutes). Add the aquafaba and continue beating until well combined.

Beat in the vanilla paste. Add the flour mixture and mix with a wooden spoon until you have a smooth dough. Cover and refrigerate until firm (1 hour).

Preheat oven to 400F (190C) and place rack in the centre of the oven. Line baking sheet with parchment paper.

Shape the dough into 2.5 cm round balls.

Coating: In a large bowl mix together the sugar and cinnamon.

Roll the balls of dough in the cinnamon sugar and place on the prepared baking sheet, spacing about 4 cm apart. Using the bottom of a glass to gently flatten each cookie before baking will help to have an even bake.

Bake the cookies for about 8 - 10 minutes, or until they are light golden brown and firm around the edges and the centre of the cookies will still be a little soft.

Remove from oven and place on a wire rack to cool.