With electric mixer whisk butter until creamy
Add oil and mix till well blended and very very smooth and silky
Add icing sugar and whisk again for a few minutes until creamy
Add flour and mix till well incorporated. I used my electric mixer to do the work, no need to do this by hand. The dough will be soft.
Use a star nozzle and pipe strips on a cookie sheet, which you covered with parchment paper.
Oven temperature: 350 F
Baking time: 12-14 minutes, depending on your own oven.
Still need to dip them in chocolate, but will do that later.
Source: TRIED AND TESTED: Esme Slabbert‘s kitchen