• Preheat oven to 325° F.
• Line baking sheet with parchment paper and set aside.
• In a large bowl, mix butter, sugar, vanilla extract, and flour together until incorporated. Dough should hold its shape when squeezed together.
• Divide dough into 4 equal portions and form into logs down the length of the cookie sheet.
• Press your finger into the center to create an indent all down each log.
• Bake 12-15 minutes. Cool completely.
• Fill each log with jam.

for the icing-

• In a small bowl, mix together powdered sugar, 1 teaspoon of milk, and vanilla extract until its the consistency of white school glue. Add more milk as needed for desired consistency.
• Drizzle icing over each log generously. Allow to set for 20-30 minutes before slicing.
• Using a sharp knife, slice diagonally into 60 equal sized cookies and serve!