Dubai Chocolate Crêpe Cake Roll with Strawberries

Name: Dubai Chocolate Crêpe Cake Roll with Strawberries
Ingredients: 1 1/4 teaspoons powdered gelatin; 1 1/2 cups cold heavy cream; 1/3 cup pistachio cream; 1/2 teaspoon pure vanilla extract; 2 tablespoons unsalted butter; 2 cups packed frozen kataifi (about 4 ounces), thawed and chopped; 1/2 cup pistachio cream; Pinch kosher salt; 6 tablespoons unsalted butter; 1 cup whole milk; 1/2 cup all-purpose flour; 3 tablespoons Dutch-process cocoa power; 2 large eggs; 1/4 teaspoon pure vanilla extract; One 4-ounce milk chocolate bar, chopped; 1/4 cup heavy cream; 8 ounces small strawberries with the tops, halved