sentence: There's a tutorial on how to make shortbread cookies. sentence:  The chef demonstrates how to mix the butter and flour in a blender to blend the dough. sentence:  Then she knead the dough together to make a rectangular roll. sentence:  She sprinkles some sugar on a parchment paper and rolls the dough in it and covers it before keeping it in the refrigerator. sentence:  After cooling the dough, she takes it out and cuts them into rectangular pieces. sentence:  She places the raw cookie on a cookie sheet and bakes them. sentence:  When the cookies are done baking, she places them in an airtight plastic container for storing for future consumption.