These are the best Shortbread cookies I have ever had! They are soft and crumbly. They melt in your mouth. My mom made these ones:
2 cups of softened butter
1 cup of icing sugar
3 1/2 cups of flour
1/2 cup of cornstarch
In bowl, cream butter and sugar until it is light and fluffy.
In separate bowl, combine flour and cornstarch. Then add to creamed mixture.
Put in ungreased pan. The size of pan is up to you, it depends on how thick you like them. We use a glass 8×10 but don’t spread it out to fill it because we like them thick.
Pierce with fork.
Bake at 325 degrees for 40-45 minutes. Cut warm.