Pop popcorn and add to an extra large mixing bowl.
Peanut butter sauce: In medium saucepan over medium heat add honey and sugar and stir well to combine. Bring to a boil then boil for 2 minutes, stirring. Remove from heat and stir in peanut butter and vanilla, mixing until smooth.
Combine: Slowly pour HALF of the peanut butter sauce over the popcorn and gently stir to coat. Drizzle more peanut butter sauce, until your desired coating is reached (you may not use it all, depending on preference). Add Reese's pieces, chocolate chips or other candy, if desired.
Allow to cool for a few minutes before eating.
