Place peanut butter, cream cheese, and maple syrup in a medium bowl. Using a handheld electric mixer, beat on medium speed until creamy. Mix in vanilla and coconut flour until a soft dough forms.
Roll dough into 1-in balls and place on a parchment paper-lined sheet. Chill truffles in freezer 15 minutes or until truffles are firm.
Remove truffles from freezer and drizzle with melted chocolate. Return to freezer for an additional 5 minutes or until chocolate hardens. Store truffles in refrigerator until ready to serve.
Notes
Store truffles in refrigerator up to 1 week. Truffles may also be frozen up to 2 months.