Preheat your oven to 350°F (175°C) and line your baking sheets with parchment paper or use a non-stick baking mat.
In a mixing bowl, whisk together the flour, baking soda, cinnamon, nutmeg, and salt. Set this dry mixture aside.
In another bowl, cream together the softened butter and granulated sugar until it becomes light and fluffy.
Beat in the egg and vanilla extract until well combined.
Gradually add the dry mixture into the wet mixture, mixing until the cookie dough forms.
Gently fold in the mixed candied fruits and chopped nuts until they are evenly distributed throughout the dough.
Use a cookie scoop or spoon to drop rounded tablespoons of dough onto the prepared baking sheets, spacing them about 2 inches apart.
Bake in the preheated oven for 10-12 minutes or until the edges of the cookies turn golden brown.
Allow the cookies to cool on the baking sheets for a few minutes before transferring them to a wire rack to cool completely.