Kouign-Amann

Name: Kouign-Amann
Cuisine: French
Ingredients: 2 tablespoons (30 g) European-style butter (at least 82% fat), melted, slightly cooled, plus more for bowl; 1 tablespoon (10 g) active dry yeast; 3 tablespoons (40 g) sugar; 1 teaspoon (5 g) kosher salt; 3 cups (400 g) all-purpose flour, plus more for surface; 12 oz. (340 g) chilled unsalted European-style butter (at least 82% fat), cut into pieces; ½ cup (100 g) sugar; All-purpose flour; ¾ cup (150 g) sugar, divided; Nonstick vegetable oil spray; Two 6-cup jumbo muffin pans; ruler