Preheat oven to 350°. Line 2 baking sheets with parchment paper.
In a large bowl, whisk butter, egg and vanilla until thoroughly blended. Add sugar and whisk to blend.
In a small bowl, combine flour, tapioca starch, toasted sesame seeds and salt. Add the flour mixture to the margarine mixture and stir until combined.
Spread batter onto baking sheets to create a flat rectangle on each. Bake for 7 minutes, or until golden. Let cool on the baking sheets for 15 minutes. Transfer to a wire rack to cool completely. With a very sharp knife, cut vertically into 4 then horizontally into 4, making 16 squares on each baking sheet.
Preheat oven to 350°. Line 2 baking sheets with parchment paper.
In a large bowl, whisk butter, egg and vanilla until thoroughly blended. Add sugar and whisk to blend.
In a small bowl, combine flour, tapioca starch, toasted sesame seeds and salt. Add the flour mixture to the margarine mixture and stir until combined.
Spread batter onto baking sheets to create a flat rectangle on each. Bake for 7 minutes, or until golden. Let cool on the baking sheets for 15 minutes. Transfer to a wire rack to cool completely. With a very sharp knife, cut vertically into 4 then horizontally into 4, making 16 squares on each baking sheet.
Thank you!