Heat deep fryer to 360 degrees
In large mixing bowl, combine flower, salt, baking powder, and powdered milk
Gently knead in shortening
Add warm water and finish kneading by hand
Divide dough into 8 equal balls (dough will be very sticky, so dust your hands with flour, as needed)
Using your hands, flatten dough into 5-6 inch disks, slightly thinner in the middle
Gently place in deep fryer and fry until golden brown, flipping half way through. About 2-3 minutes
Remove and place on paper towel lined baking sheet
Serve warm with taco filling and top with cheese, lettuce and other favorite taco toppings