CHOCOLATE GANACHE WITH COCOA POWDER(no cream , no chocolate):

CHOCOLATE GANACHE WITH COCOA POWDER(no cream , no chocolate): 3/4 cup powdered sugar (or granulated sugar + 1 teaspoon corn flour) 1/2 cup cocoa powder 1/2 cup milk(115 ml ) 1/3 cup unsalted butter 5 tbsp 70 g