como hacer polborones con manteca de cerdo super crujientes

2 cups flour 1 cup sugar 112 g lard or 4 oz 10 g baking powder 1 egg Vanilla to taste Knead well, form into balls, and place on a greased baking sheet. Bake at 370°F for 25 minutes or 190°C for 25 minutes. Please see the video for the procedure.