Chocolate Dipped Shortbread Cookies Recipe

1 cup (2 sticks) unsalted butter
3/4 cup sifted confectioners' sugar
1 teaspoon pure vanilla extract
2 cups sifted all-purpose flour, plus more for dusting
1/2 teaspoon salt
3 ounces semisweet dark chocolate, finely chopped
3 ounces white chocolate chips
1 teaspoon olive oil
Chocolate Dipped Shortbread Cookies Preparation:
Preheat the oven to 300° F.
In a large bowl, cream together the butter, sugar, and vanilla with a mixer until combined. On slow speed, beat in the flour and salt until combined.
Form dough into a ball and wrap the shortbread cookie dough in plastic wrap; chill until firm, at least 2 hours, or overnight.
On a lightly floured surface, roll out the dough until to 1/8 inch thick.
Cut out hearts with a 2-inch heart cookie cutter.
Transfer cookies to an ungreased baking sheet; chill for 30 minutes.
Heat oven to 300 degrees with a rack in the center.
Using the tines of a fork press the edges of each cookie to make designs.
Bake until just beginning to brown around the edges, about 18 minutes.
(Shortbread cookies will keep in an airtight container at room temperature for about 5 days.)
In the top of a double boiler or in a heat-proof bowl set over simmering water, melt the chocolate, stirring occasionally. Add in the oil and stir.
Dip half or one third of each cookie into the chocolate mixture.
Melt the white chocolate over simmering water using the same method as for the chocolate dip. Place melted white chocolate into a frosting pouch (or a ziplock bag with a small corner hole). Drizzle over the chocolate dipped shortbread cookies.
Transfer shortbread cookies to a cooling rack to dry, or place them on a piece of parchment paper in the freezer for 10 minutes. Serve.