Hershey Kiss Cookies are cute as a button and a double chocolate hit! The cocoa cookie is buttery and decadent with a chocolate Kiss on top.
Add egg, egg yolk, and vanilla, beat until combined. Stop Ince to scrape the bottom and sides of the bowl with a spatula.
In another bowl, stir together flour, cocoa powder, baking soda, and salt.
Add flour mixture little by little to the butter mixture, and beat until well combined.
Divide dough into 20-24 balls, about 1” big. Roll each ball in sugar and place onto a baking sheet covered with parchment paper. Cookies should be 2 inches apart.
Remove from the oven and cool 2-3 minutes and immediately press a Hershey kiss into the center of each cookie and transfer it to a cooling rack.