In a medium size bowl, whisk together flour, baking soda, and salt. Set aside.
In a large bowl using an electric mixer, beat together butter, peanut butter, and sugars on medium speed until light and fluffy. Add eggs and vanilla extract; mix until combined.
Scrape down the sides of the bowl, add flour mixture; mix on low speed until combined.
Cover cookie dough with plastic wrap and refrigerate for 2-3 hours. Do not bake cookies without chilling as they are prone to spreading
Preheat oven to 350F degrees.
Scoop dough into tablespoon rounds, or use a #50 disher in between; covering the Snickers completely and forming a ball.
Cool cookies on a baking sheet on a wire rack for 8 minutes; transfer to a wire rack to cool completely.
In a small microwave-safe bowl, add milk chocolate. Microwave on medium heat for 30 seconds. Remove and stir slowly. Replace in microwave for 15- second increments until chocolate is completely melted.
Dip a fork or drizzling scoop into melted chocolate and drizzle over cooled cookies. Allow Santas Surprise Cookies to sit until chocolate hardens. Eat & Enjoy!
Notes
Santas Surprise Cookies should be stored in an airtight container and will keep 4+ days.