I have been making these shortbread

for over 35 years and they never disappoint.
Recipe is, 1 cup powered sugar, 2 cups of butter and 3 cups of flour. Cream butter and sugar on medium high add flour and continue to beat for 5 minutes. The dough will feel velvety when done. I roll out dough to desired thickness, cut shapes and bake at 350 for about 7 minutes.