Step 1
Place flour, sugar and butter into a food processor and process until fine. Add egg yolk and process until combined. Cover mixture and let sit overnight.
Step 2
Roll mixture out and cut with cookie cutters into your favorite shapes.
Step 3
To put candy in the cookies, use a small cutter to cut holes in the cookies. For jam tarts, use the leftover pieces removed from candy cookies as the lids of the tarts.
Step 4
Cook for 20–30 minutes at 360°F (180°C). For candy cookies, place candy into the holes after 15 minutes.
Step 5

When the cookies have cooled, dust with icing sugar or use the icing as a glue to attach decorations such as colored sugar or crushed candy.
Step 6

This recipe is excerpted with permission from <a href="http://amzn.to/1BFR7zs">"Stylish Dress Book: Wear with Freedom"</a> by Yoshiko Tsukiori (Tuttle Publishing).