Making a Classic French Galette des Rois Is Easier Than You Think

Name: Making a Classic French Galette des Rois Is Easier Than You Think
Ingredients: 113g blanched almond flour (4 ounces; 1 cup), see note; Two 14-ounce packages frozen puff pastry (396g each), thawed; 85g unsalted butter, room temperature (3 ounces; 6 tablespoons); 100g granulated sugar (about 3 1/2 ounces; 1/2 cup); 1/2 teaspoon orange zest from 1 medium orange, optional; 16g all-purpose flour (1/2 ounce; 2 tablespoons); 1 large egg, room temperature; 1 tablespoon (15ml) brandy or rum, optional; 1 1/2 teaspoons almond extract; 1 1/2 teaspoons vanilla extract; 1/2 teaspoon Diamond Crystal kosher salt; for table salt, use half as much by volume; 1 large egg yolk, for brushing