Glittering Lemon Sandwich Cookies Recipe | Epicurious

Ingredients

• 1 1/3 cups all-purpose flour
• 2/3 cup cornstarch
• 1/4 teaspoon salt
• 2 sticks unsalted butter, softened
• 1/2 cup confectioners sugar
• 1 tablespoon grated lemon zest
• 1 teaspoon vanilla
• White or colored sanding sugars
• 1 cup confectioners sugar
• 1 tablespoon fresh lemon juice
• 2 tablespoons light corn syrup
• 1/2 stick unsalted butter, softened
• Equipment: a heavy-duty sealable bag