COMBINE flour, morsels, baking powder and salt in large bowl. Combine milk, eggs, oil and brown sugar in medium bowl; add to flour mixture. Stir just until moistened (batter may be lumpy).
HEAT griddle or skillet over medium heat; brush lightly with oil. Pour 1/4 cup batter onto hot griddle into the shape of a heart; cook until bubbles begin to burst. Turn; continue to cook about 1 minute longer or until golden. Repeat with remaining batter. (For perfectly shaped pancakes, brush inside of cookie cutters with oil; place on griddle. Pour about 1/4 cup batter into the cookie cutters and cook until bubbles begin to burst. Remove cookie cutters. Turn; continue to cook about 1 minute longer or until golden.)
SPRINKLE with powdered sugar before serving.