In a large bowl with a hand mixer or stand mixer fitted with the paddle attachment, cream together butter, peanut butter and coconut sugar in the bowl on medium-high until light and fluffy. Mix in the eggs one at a time, beating for one minute after each addition. Add vanilla and beat until combined.

In a separate smaller bowl, whisk together gluten-free flour, baking soda and salt. Gradually add the dry ingredients to the butter mixture until dough forms and starts to pull away from the edges of the bowl. Cover dough with plastic wrap and refrigerate for one hour or up to 2 days.

Once chilled, preheat oven to 375°F and line a large baking sheet with parchment paper.

Scoop a large teaspoon of dough and roll into balls. Place on the baking sheet 2 inches apart. Bake in preheated oven for 8-10 minutes or until the cookies are set and just start to crack around the edges. Unwrap the Hershey Kisses while the cookies bake.

Place a Kiss immediately on each cookie after removing them from the oven. Make sure to push down enough so the Kiss stays. The edges of the cookies will crack more. Allow to cool on the baking sheet for 5 minutes then transfer to a wire rack to cool completely, until the Hershey Kisses set again.