In a large bowl, beat butter and sugar
until fluffy, about 3 minutes. Beat in egg
and salt, then cooled but still fluid
caramel mixture. On low speed, mix in
flour. Add some dough to cookie press.
Press cookies out onto ungreased baking
sheets. Bake at 350° for 10 minutes, until
set and just beginning to brown around
bottom. Transfer to wire racks to cool and
repeat with remaining dough.