
Celebrate St. Patrick's Day with this perfect fudgy chocolate cake with a special ingredient—Guinness!—and a dreamy cream cheese frosting.
Arrange a rack in center of oven; preheat to 350°. Grease a 9" springform pan with cooking spray. Dust with cocoa powder, tapping out excess.
In a large bowl, using handheld mixer on medium-high speed, beat cream cheese until light and fluffy, about 2 minutes. Add confectioners’ sugar and vanilla and gently mix with a spatula until just incorporated. Using handheld mixer on medium-high speed, continue to beat until frosting is very light and fluffy.