Our Favorite Cinnamon Rolls

Name: Our Favorite Cinnamon Rolls
Ingredients: 3 1/2 cups all-purpose flour, plus more for rolling; 2 1/4 teaspoons rapid-rise yeast; 1/3 cup sugar; 2 large eggs, room temperature, beaten; 1 cup whole milk; 4 tablespoons unsalted butter, plus more for greasing pan; 2 teaspoons ground cinnamon; 1 teaspoon kosher salt; Vegetable-oil cooking spray; 1 1/4 cup packed dark-brown sugar; 2 tablespoons ground cinnamon; 1/2 teaspoon ground nutmeg; 1/8 teaspoon kosher salt; 6 tablespoons unsalted butter, room temperature; 2 cups chopped, lightly toasted pecans; 1 cup powdered sugar; 1 tablespoon plus 2 teaspoons whole milk; 1/4 teaspoon vanilla extract; Pinch kosher salt; 2 9-inch round cake pans