Preheat your oven to 350°F and line a baking sheet with parchment paper.

In a large mixing bowl, whisk together the granulated sugar, brown sugar, and melted butter until smooth. Add the egg and continue mixing until fully incorporated.

Add the flour, baking soda, and salt, stirring until a soft cookie dough forms.

Add ¼ teaspoon green gel food coloring and gently mix by hand until the color is evenly distributed throughout the dough. Wearing disposable gloves makes this step much easier and helps prevent stained hands.

Fold in the chocolate chips until evenly combined.

Using a standard cookie scoop (about 2 tablespoons), portion the dough into 12 cookie dough balls and place them on the prepared baking sheet, leaving about 2 inches between each cookie.

Bake for 9 to 11 minutes, or until the edges are lightly golden and the centers are just set.

As soon as the cookies come out of the oven, gently press about 5 candy eyes onto each cookie while they're still warm.

Allow the cookies to cool on the baking sheet for about 10 minutes before transferring them to a wire rack to cool completely.