Cube 2 massive mangos. Place half in a big bowl, then place the remaining in a blender. Finely grate the zest of 1 medium lime and into the blender (about 1 tablespoon). Juice 3 medium limes till you have got 1/3 cup juice. Add the juice, remaining 1/4 cup olive oil, remaining 1/2 teaspoon kosher salt, and 1/4 black pepper to the blender and mix till easy, about 30 seconds. Refrigerate till prepared to make use of.