For empanada dough:
To a food, processor add flour, sugar, baking powder and salt. Pulse to combine.
Add shortening, pulse to combine.
Slowly add milk, process until dough comes together.
Turn out onto a lightly floured work surface; knead until smooth.
Cover; let rest 30 minutes in the fridge before using.
Assemble Empanadas:
Preheat oven to 350 degrees.
Roll out the chilled dough on a lightly floured surface.
Using glass cut out round disc shapes for empanadas.
Spoon banana filling in center of each empanada disc.
Fold, seal with a fork then place on a baking sheet.
Brush with egg wash.
Bake for 18-20 minutes or until golden brown.
Cool completely, dust with powdered sugar.
Makes 14-16 empanadas