Preheat Oven
Preheat your oven to 350°F (175°C). Line baking sheets with parchment paper.

Cream Butter and Sugars
In a large bowl, cream together softened butter, brown sugar, and white sugar until light and fluffy.

Add Egg and Vanilla
Beat in the egg and vanilla essence until fully combined.

Mix Dry Ingredients
In a separate bowl, whisk together plain flour, salt, baking soda, and cornflour.

Combine Wet and Dry
Gradually add dry ingredients to the wet mixture, mixing until a soft dough forms.

Shape Cookies
Roll dough into small balls and place on the prepared baking sheets. Flatten slightly with your palm.

Bake
Bake for 10-12 minutes or until edges are golden but centers remain soft.

Cool
Allow cookies to cool on the baking sheet for 5 minutes before transferring to a wire rack.

Decorate
Once cool, decorate as spiders with chocolate legs, icing, or candy eyes.