抹茶饼干和白巧克力毛毛雨

Sift flour and matcha into a medium bowl, breaking up any clumps using a rubber spatula; set aside. Vigorously whisk butter in a large bowl until pale and fluffy, about 3 minutes. Gradually add sugar to butter, about 2 tablespoons at a time, whisking well after each addition and scraping down sides of bowl as needed. Whisk in egg until well combined. Add flour mixture in 3 additions, folding with a rubber spatula after each addition to form a shaggy dough. Using your hands, gently knead dough in bowl just until all dry ingredients are evenly incorporated and dough forms a ball. Flatten into a 1-inch-thick disk. Wrap tightly in plastic wrap, and chill at least 2 hours or up to 12 hours.

Preheat oven to 375°F with racks in upper third and lower third positions. Line 2 baking sheets with parchment paper; set aside. Unwrap dough. Place dough between 2 separate sheets of parchment paper, and roll to 1/4-inch thickness. Chill until firm, about 15 minutes. Cut out cookies using desired tree and wreath cookie cutter shapes (about 2 to 2 1/2 inches wide or long each). Arrange cookies at least 1/2 inch apart on prepared baking sheets. Place cookies in refrigerator, and re-roll dough scraps; repeat cookie cutting process with remaining dough, chilling dough as needed.

Bake cookies in preheated oven until very lightly browned around edges and matte on tops, 10 to 14 minutes, rotating baking sheets between top and bottom racks halfway through bake time. Let cookies cool on baking sheets 2 minutes. Transfer cookies to a wire rack, and let cool completely, about 20 minutes. Reserve parchment-lined baking sheets.

Fill a small saucepan with water to a depth of 1 inch; bring to a simmer over medium. Place white chocolate in a small heatproof bowl, and place over simmering water, ensuring bottom of bowl doesn't touch water. Reduce heat to low, and cook, stirring constantly, until melted and smooth, 2 to 4 minutes. Remove pan from heat, but keep bowl over warm water.

将饼干部分浸入白巧克力中，或在饼干上淋上白巧克力。让饼干在保留的羊皮纸衬里烤盘上干燥，直到白巧克力变硬，大约1小时，或冷却15分钟。