In a medium bowl, whisk together the flour, baking soda, and salt. Set aside.
In the bowl of a stand mixer fitted with a paddle attachment (or using a large bowl and handheld mixer), cream the butter and sugars on medium speed until combined.
Next, add the peanut butter, egg, and vanilla and beat until incorporated. Increase the mixer speed to high and beat for another 1-2 minutes, till thoroughly combined and pale in color.
Add the dry ingredients and mix on low speed until combined.
Cover the bowl with plastic wrap and chill for at least one (1) hour and up to three (3) days.
After chilling, preheat the oven to 350°F and line two baking sheets with parchment paper or silicone baking mats. Set aside. Remove the dough from the refrigerator and scoop about 1½ tablespoons for each cookie. Roll the dough into balls and place on the prepared baking sheets, 2-3 inches apart. (If desired, roll each ball in granulated sugar before placing on the baking sheets.)
Bake for 11-13 minutes, being careful not to overbake. The cookies will look soft and slightly golden. Remove them from the oven and allow to cool on the baking sheet for about five (5) minutes.
Once the cookies have cooled slightly, begin creating the paw prints in each one using the chips and wafers. Use 3-4 chips for the toe prints (three for bear paws and four for dog paws) and one wafer for the paw pad. Transfer the decorated cookies to a freezer-safe plate or tray and freeze for 5-10 minutes, till the chocolate is set.