Preheat the Oven: Preheat your oven to 350°F (175°C) and line a baking sheet with parchment paper. Mix Dry Ingredients: In a medium bowl, whisk together flour, baking soda, and salt. Set aside.
Cream Butter and Sugar: In a large bowl, beat together softened butter and granulated sugar until light and fluffy (about 2-3 minutes).
Add Egg and Vanilla: Beat in the egg and vanilla extract until fully combined.
Combine Wet and Dry Ingredients: Gradually add the dry ingredients to the wet mixture, mixing until just combined.
Add Fun Mix-ins: Gently fold in sprinkles, chocolate chips, dried cranberries, and nuts.
Scoop Dough: Using a cookie scoop or tablespoon, drop rounded scoops of dough onto the prepared baking sheet, leaving space between each cookie.
Bake: Bake for 12-15 minutes or until the edges are golden brown.
Cool: Allow the cookies to cool on the baking sheet for a few minutes before transferring to a wire rack to cool completely.