Preheat oven to 400 degrees, and grease a 12-cup muffin tin.
Combine the flour, baking powder, salt, cinnamon, and sugar in a large bowl and stir with a whisk or a fork. In a smaller bowl, combine oil, milk and vanilla. Pour the wet ingredients into the dry and gently combine, being careful not to over mix. Fold in the pulp and chocolate chips/nuts, if using.
Scoop into muffin tins and bake for 18 to 22 minutes. Cool in pan for 10 minutes, before removing tea cakes to a cooling rack to cool completely.
Recipe provided by Breville