In the bowl of a stand mixer fitted with the paddle attachment, beat butter, Vanilla Powder, and salt at medium speed until smooth and creamy. With mixer on low speed, gradually add confectioners’ sugar, beating until combined, stopping to scrape bottom and sides of bowl and paddle. Beat in cream and Vanilla Bean Paste. Slowly increase mixer speed to high, and beat until pale and fluffy, 1 to 2 minutes. Use immediately.