8 oz white chocolate candy melts (about 1 1/2 cups)
2 T vegetable oil, divided
24 oreos
8 oz mik or dark chocolate candy melts (about 1 1/2 cups)
Line 2 baking sheets with waxed paper. In a 2-cup glass measuring cup, combine white chocolate candy melts and 1 T oil. Microwave on High for 1 minute; stir until smooth and melted. Using tongs, dip a cookie into the melted white chocolate; tap off excess coating. Transfer cookie to a prepared baking sheet. Repeat for a total of 12 cookies. Chill until chocolate is set, about 20 minutes. Set aside remaining white coating. In another 2-cup glass measuring cup, combine milk chocolate candy melts and remaining oil. Microwave on High for 1 minute; stir until smooth and melted. Dip remaining cookies in melted milk chocolate, transfer to prepared baking sheet. Chill until set, about 20 minutes. Set aside remaining milk chocolate coating. When the chocolate is firm, lift the dipped cookies from waxed paper. Using a small knife, trim off any excess chocolate. Reheat reserved milk chocolate in microwave on High, stirring at 15-second intervals, until smooth. Transfer milk chocolate to a resealable plastic bag; snip off 1 corner. Pipe milk chocolate cow spots onto white chocolate-coated cookies. Chill cookies until spots are set, about 10-minutes. Repeat previous step with reserved white chocolate to decorate the milk chocolate-coated cookies.