As Jock said, that recipe contains way too much fat compared to flour. Assuming that cup of flour was around 4 ounces, then you essentially had equal amounts of fat and flour in it... which works in some cases, but not for quiche dough. As other said, replace your margarine for butter (for a textural and flavour improvement), and reduce the butter to around 2/3rds of a stick.
__________________
"If it's chicken, chicken a la king. If it's fish, fish a la king. If it's turkey, fish a la king." -Bender |