In a mixer fitted with the paddle attachment, cream the butter and sugar together. Beat in the egg yolks, one at a time, along with the vanilla. Stir in the chocolate mixture slowly. In a small bowl, combine the flour, baking powder, baking soda, and salt. Slowly add the flour mixtur...
Whisk in the cocoa powder and granulated sugar. In the bowl of a stand mixer fitted with the paddle attachment, beat together the sour cream, egg, and vanilla at medium speed until just combined. Add the Guinness mixture and mix until combined. Add the flour, pudding mix, baking soda, ...
mixer with the paddle attachment, cream the butter and sugar until fluffy. Reduce speed to low and add the 3/4 cup potato chips and mix until incorporated, and then add the vanilla, and mix until thoroughly combined. Add the flour and mix until just combined — do not over mix the ...