Preheat your oven to 350°F.
In a spacious mixing bowl, blend together the peanut butter, white sugar, brown sugar, eggs, and vanilla extract until creamy and uniform.
Stir in the baking soda and sea salt, then fold in the flour until well combined.
Take a tablespoon of dough and roll it into a ball, then coat each ball in white sugar.
Arrange the sugar-coated dough balls on a baking sheet lined with parchment paper, spaced about 2 inches apart.
Bake the cookies for 10-12 minutes, or until the edges are light golden brown.
Press a chocolate kiss into the center of each cookie while they are still warm.
Let the cookies rest on the baking sheet for about 5 minutes before transferring them to a wire rack to cool completely.