Milk Bread

Name: Milk Bread
Ingredients: 4 tbsp. water (60 ml.); 4 tbsp. whole milk (60 ml.); 4 tbsp. bread flour (32 g.); 1 (0.25-oz.) packet active dry yeast (7 g.); 1/2 c. whole milk, lukewarm (120 g.); 1/2 c. sweetened condensed milk, divided (156 g.); 2/3 c. evaporated milk (160 g.); 1 large egg, beaten; 3 c. bread flour (384 g.); 1 1/4 tsp. kosher salt; 4 tbsp. butter, cubed, softened (56 g.), plus more for pan; Reserved 1 tbsp. egg; 1 tsp. granulated sugar; 1/8 tsp. kosher salt; 1/2 tsp. water