Make and share this Chocolate Butter Tarts recipe from Food.com.
- Chop each of three squares of chocolate into 16 pieces.
- Place 4 chunks into bottom of each tart shell.
- Whisk together brown sugar,corn syrup, egg, butter, vanilla, vinegar, and salt.
- Spoon into tart shells, filling three-quarters full.
- Bake at 450 degrees for 12-14 minutes, or until filling is puffed and bubbly and pastry is a light golden brown.
- Let cool on racks.
- Drizzle with melted chocolate.