Preheat the oven to 350°F. Line a baking sheet with parchment paper.

In a large bowl, beat the sugar, butter, egg, vanilla, and milk until creamy.

Whisk the flour and baking soda in a small bowl, then gradually beat into the wet mixture until a soft dough forms.

Use a 1⅓ tablespoon cookie scoop to gather the dough, then roll into balls.

Dip each dough ball into a bowl of sprinkles and place sprinkle-side up on the prepared baking sheet, spacing them about 2 inches apart.

Bake for 8–10 minutes, or until the cookies are golden on the bottom.

Remove from the oven and immediately top each cookie with a Hershey’s Kiss.

Transfer to a wire rack to cool.