This is an adaptation of a recipe for Osgood pie, recently shared by Bennie Sue Dupy, originally from Mart, Texas, near Waco. These rich raisin and pecan squares are like a combination of pecan pie and a rich butter raisin custard.
Set a rack in the middle level of the oven and preheat to 350 degrees.
For the dough, combine the flour, salt, baking powder, and sugar in the bowl of a food processor and pulse several times to mix. Cut the butter into about sixteen pieces and add to