Heat oven to 350 degrees. Drain cherries well. Reserve liquid for cherry drizzle. Cut the cherries in half. Set aside. Melt chocolate chips and butter in a 3-qt. saucepan over low heat; stirring constantly. Remove from heat. Stir in sugar, flour, vanilla, baking powder, salt, and eggs. Stir in cherries and the chocolate chunks. Spread the dough in an ungreased 13x9x2-inch baking dish. Bake for 32-37 minutes or until the center is set. Cool completely, about one hour. Place cherry drizzle in a resealable plastic food-storage bag. Cut off tip of bag. Squeeze drizzle in desired patter on top of cooled brownies. For brownies, cut 6 rows by 4 rows.