Teh Tarik (Pulled Tea)

Slightly modified from Amazing Malaysian by Norman Musa.
Ingredients:
5-6 black tea bags
3 Tbsp. sweetened condensed milk

Steep tea bags in 4 cups boiling water for 5-6 minutes. Remove tea bags and stir in sweetened condensed milk. Pour tea back and forth between 2 pitchers until frothy, then serve.