In a large bowl, combine flour, baking soda and salt.

Add sugar, butter, vanilla extract and milk to the flour. Mix with your hand until a dough is formed. Roll in a round shape and wrap in plastic. Place in the refrigerator for 30 minutes to chill.

Preheat the oven to 350 F| 175 C. Prepare 2 baking trays with parchment paper.

Prepare your working surface with flour. Divide dough into 4 pieces. Roll out dough to ½ inch thickness. Please note that you will need 2 pieces to cut without holes and 2 pieces with heart-shaped holes.

Use flower-shaped cookie cutters to cut out cookies. Gently place the cookies on the baking sheets. Then use the heart-shape cookie cutter to cut the middle.

Bake for 12 minutes. Allow to cool down completely on the baking tray before spreading with jam.