Iced Eggnog Shortbread Cookie Trees

Stars aren’t just for topping the tree. Turns out, the shape is perfect for stacking to create your most eye-catching centerpiece yet. We let our favorite holiday drink inspire the flavor for these tender, delicately spiced shortbread. You’ll love the little kick from the spiced rum.

Iced Eggnog Cookie Trees
 
Makes 2 cookie trees (30 cookies)
Ingredients
  • 1 cup (227 grams) unsalted butter, softened
  • 2 cups (240 grams) confectioners’ sugar
  • 1 large egg (50 grams), room temperature
  • 1½ teaspoons (7.5 grams) spiced rum
  • ½ teaspoon (2 grams) vanilla extract
  • 3¼ cups (406 grams) all-purpose flour
  • 2 teaspoons (10 grams) baking powder
  • 1 teaspoon (3 grams) kosher salt
  • 1 teaspoon (2 grams) ground cinnamon
  • 1 teaspoon (2 grams) ground nutmeg
  • Spiked Royal Icing (recipe follows)
  • 2 tablespoons (30 grams) water
  • Garnish: assorted sprinkles
Instructions
  1. Preheat oven to 375°F (190°C). Line baking sheets with parchment paper.
  2. In a large bowl, beat butter and confectioners’ sugar with a mixer at medium speed until fluffy, 2 to 3 minutes, stopping to scrape sides of bowl. Add egg, rum, and vanilla, beating until combined.
  3. In a medium bowl, whisk together flour, baking powder, salt, cinnamon, and nutmeg. With mixer on low speed, gradually add flour mixture to butter mixture, beating until a dough forms.
  4. Divide dough in half; cover one half with plastic wrap. On a lightly floured surface, roll uncovered dough to ¼-inch thickness. Using 5 graduated-size, star-shaped cookie cutters*, cut out 3 cookies for each size, rerolling scraps as needed. Repeat with remaining dough. (Each tree will have 15 cookies.) Working in batches and using a small offset spatula, place cookies, sorted by size, at least ½ inch apart on prepared pans.
  5. Bake until edges are just beginning to brown, 7 to 10 minutes. Let cool on pans for 1 minute. Remove from pans, and let cool completely on wire racks.
  6. Transfer about 1 cup (206 grams) Spiked Royal Icing to a small bowl; add 2 tablespoons (30 grams) water, stirring until icing is flood-consistency. (If icing is too thick, add more water, and if it’s too thin, add more confectioners’ sugar. For reference, flood-consistency icing has the appearance of runny honey.) Dip tops of cooled cookies into flood-consistency Spiked Royal Icing, letting excess drip off. Let stand until dry, at least 4 hours. (Don’t rush this process—if you start to move your cookies or ice with new details, you’ll risk smudging.) Spoon 1 cup (206 grams) Spiked Royal Icing into a small piping bag fitted with a small round piping tip (Wilton No. 2) or cut a ⅛-inch opening. Pipe desired decorations onto dipped cookies. (See Decorating Techniques on page 41.) Refill piping bag as needed. Garnish with sprinkles, if desired. Let stand until dry, at least 1 hour.
  7. For first set of 15 cookies, start with largest star and stack cookies in order of size, spiraling them so points do not line up; use Spiked Royal Icing as an adhesive, piping a little icing onto the center point of each cookie before layering with the next. Stand final cookie upright as a tree topper, securing with Spiked Royal Icing. (To help top cookie stand up, gently grate bottom points until flat and dot with icing before securing to the top of the tree.) Repeat procedure with second set of 15 cookies.

 

 

Spiked Royal Icing
 
Ingredients
  • 3¾ cups (450 grams) confectioners’ sugar
  • 2½ tablespoons (22.5 grams) meringue powder*
  • 6 tablespoons (90 grams) warm water (80°F/26°C to 105°F/41°C)
  • ¾ teaspoon (3.75 grams) spiced rum
  • ¾ teaspoon (3 grams) vanilla extract
Instructions
  1. In the bowl of a stand mixer fitted with the paddle attachment, beat confectioners’ sugar, meringue powder, 6 tablespoons (90 grams) warm water, rum, and vanilla at low speed until well combined. Increase speed to medium; beat until mixture is the consistency of toothpaste, 3 to 5 minutes. (See Note). Use immediately. (See PRO TIP.)
Notes
Note: Any leftover flood-consistency icing can be stored in an airtight container in the freezer for up to 3 months.
Make Ahead: Store cookies in an airtight container for up to 3 days. If icing, let icing dry and harden completely before storing.
Note: Use gel food coloring to tint your Spiked Royal Icing. Gel food coloring won’t affect the icing’s consistency like liquid food coloring does. For green icing, tint Spiked Royal Icing with 1 to 2 teaspoons Wilton Gel Icing Color in Kelly Green.
PRO TIP-It’s the nature of royal icing to harden and dry out. If you’re not using it immediately, cover the top of your icing with a damp paper towel to keep it fluid and fresh, but for no more than 1 hour. You can also put the icing in an airtight container.

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