In a large mixing bowl, cream together the plant butter and sugar until light and fluffy.
Stir in the vanilla extract and mix until fully combined.
Add the plant milk, baking powder, Orgran, and plain flour, mixing until everything is evenly incorporated.
Chill the dough in the freezer for 15 minutes to make it easier to handle.
Preheat the oven to 180°C (356°F).
Scoop out the dough using a tablespoon or ice cream scooper, then roll each ball in white sugar. Place them on a baking tray and gently flatten with your hands.
Bake for about 10 minutes, keeping an eye on them so they don’t over-bake.
While the cookies are cooling, mix 1 tablespoon of cinnamon into the vanilla frosting. Once the cookies have completely cooled, pipe the frosting onto each one.
Finish with a light sprinkle of cinnamon and white sugar, and enjoy your homemade churro cookies.