The Best Crumbly Butter Cookies.

100 g butter 50 g vegetable oil 40 g milk 80 g sugar 230 g flour 1 egg 1/3 tsp baking powder 1 tsp vanilla sugar Pinch of salt. _______ Apricot jam Chocolate _____ Bake in an oven preheated to 180°C for 15-20 minutes.