Preheat the oven to 350F.
Using a stand mixer with the paddle attachment or a hand mixer, cream butter and sugar together, until light and fluffy.
Add in one egg at a time, making sure it is fully incorporated before adding the next. Add lemon zest and Vanilla extract and mix.
Sift flour and baking powder together. Add a pinch of salt.
Slowly add the flour mixture to the mix. Once the flour is fully incorporated, dump it onto a floured surface and knead into a ball.
Cut a small piece off and roll it out to a log 1/2 inch thick and about 12 inches long. Fold the log over and twist, then form a ring shape and seal the seam.
Place onto a parchment lined baking sheet. Bake at 350F for 20-25 mins, until light golden brown on the bottom.