Roll Out Butter Cookies

I use these like sugar cookies - They taste much better but are also a bit fragile.  They  are great glazed!

2 1/2 sticks of butter at room temperture
1 cup granulated sugar
1/4 tsp salt
3 egg yolks
1 1/2 Tbl heavy cream or half & half
1/2 tsp vanilla extract
3 cups flour

Preheat oven to 325.  Using an electric mixer cream butter, sugar, salt for 2 minutes until fluffy.  Add egg yolk,cream and vanilla anmix another 2 minutes.  Add flour and mix until well blended. Divide dough into three parts.  Flatten each into a disk.  Wrap seperately with plastic wrap and refrigerate until firm (about 1 hour) Roll out and cut into shapes ( if dough is too soft chll sheets before cutting) Bake 6-12 minutes just until they begin to brown around the edges let cool on cookie sheets 2 minutes then move to rack to continue cooling.