Preheat oven to 350 degrees. Line cookie sheets with parchment paper.
Cream butter and both sugars with an electric mixer until smooth and fluffy.
Be sure to scrape the sides of the bowl when mixing the ingredients.
Add the egg, mixing until smooth.
Add peanut butter and vanilla to the mixture. Blend well.
In a separate bowl, whisk baking soda, powder, salt, and flour, slowly adding to the wet ingredients.
Mix well to ensure all of the ingredients are well blended.
Using a small ice cream scoop, make small dough balls.
Place them on the lined cookie sheet.
Bake at 350º for 12 minutes or until they are lightly brown on the bottom of each of the cookies.
As soon as the cookies are taken out of the oven place the pumpkin candy into the center of the cookie.
Allow the cookie to cool slightly on the cookie sheet.
Transfer the cookies to a wire rack to cool completely.
Using a double boiler or *microwave melt the white chocolate wafers.
Once the chocolate has melted drizzle it on top of the cookies.
*Place the white chocolate in a bowl and in the microwave for 1 minute. Stir well. Move back into the microwave for another minute. Stir again. Repeat this process until all of the wafers have melted completely.