Orange and Saffron Flan

Name: Orange and Saffron Flan
Ingredients: 2/3 cup granulated sugar (4 3/4 ounces; 134 g); 1/4 cup plus 2 tablespoons (90 ml) freshly squeezed orange juice from 1 medium orange, divided, plus 1 tablespoon zest from 2 medium oranges, divided; 1 large pinch saffron threads, see notes; 3 large eggs; 3 large egg yolks (about 1 1/2 ounces; 42 g); 1 (14-ounce) can sweetened condensed milk; 1 (12-ounce) can evaporated milk; 1/3 cup (80 ml) heavy cream; 1 teaspoon (5 g) vanilla extract; 1/4 teaspoon Diamond Crystal kosher salt; for table salt, use half as much by volume