Chocolate Sandwich Cookies with Earl Grey Chocolate Ganache
These cookies are rounds of chocolate sugar cookies filled with Earl Grey tea chocolate ganache. Perfect for the holidays, as part of the cookie tray exchange or as a gift to the loved ones.
Cream the butter in a large bowl with an electric mixer at high speed until the butter is creamy, about 1 minute.
Gradually beat in the granulated and brown sugars until the mixture is light in color and texture, about 3 minutes.
In a medium bowl, sift the flour, baking powder, cocoa, and salt together.
Gradually stir in flour mixture to make a soft dough.
Divide the dough into thirds. Wrap each portion of dough in wax paper to make a log about 5 ½ inches long and 1½ inches in diameter. Twist the ends closed.
Refrigerate until the dough is chilled and firm enough to cut and hold its shape, at least 2 hours and up to 2 days.
Preheat the oven to 350F. Line two large baking sheets with parchment paper.
Using a sharp knife, cut the dough rolls into ¼ inch thick rounds. Place them about 1 inch apart on the baking sheets. (If the dough is chilled until it is very hard, let it stand to soften slightly or about 10 minutes before slicing, or the cookie slice could crack).
Bake the cookies for about 12 minutes until the edges of the cookies feel firm when lightly pressed. Let cool for 5 minutes on the baking sheet.
Transfer to wire racks and let cool completely.
To make the ganache:
Bring the heavy cream to a simmer in a small saucepan over medium heat. Remove from the heat and stir in the earl grey tea. Let stand for 5 minutes. Strain the heavy cream mixture through a wire sieve into a bowl, pressing hard on the tea.
Return the strained heavy cream to the saucepan and reheat to a simmer.
Put the chocolate in a small bowl. Add the hot, heavy cream over the chocolate and let stand until the chocolate softens for about 3 minutes. Stir with a silicone spatula until the chocolate melts.
Place the small bowl in a larger bowl of ice water and let stand, stirring and scraping the sides of the small bowl often with the spatula, until cooled and thickened to a spreadable consistency.
Place a small amount of ganache on the flat side of a cookie using a pastry bag or a spoon. Press another cookie on top, flat sides together, to form a sandwich. Allow the cookies to rest at room temperature for about one hour to let the ganache set completely.
Let stand until the ganache sets, about 1 hour.
The cookies can be stored in an airtight container and refrigerated for up to 2 days. Let stand at room temperature for 30 minutes before serving.