Grandma Lupe's Tortillas

My Grandma, Guadalupe Trujillo Gutierrez' recipe:

FLOUR TORTILLAS
1 4 CUPS FLOUR
1/3 CUP SHORTENING
1 TSP SALT
2 TSP BAKING POWDER
1 1/4 CUP WARM WATER

TOGETHER MIX WELL WITH HANDS OR PASTRY CUTTER:
FLOUR
SHORTENING
SALT
BAKING POWDER

ADD WARM WATER (NOT HOT) TO DRY INGREDIENTS GRADUALLY
UNTIL DOUGH HAS FORMED A BALL. LET SET ABOUT FIFTEEN
MINUTES BEFORE ROLLING.

USE HOT CAST IRON GRIDDLE...DO NOT OIL. JUST COOK ON BOTH SIDES ABOUT
ONE MINUTE. THAT ALL DEPENDS ON THE TEMP OF YOUR STOVE IT SHOULD BE ON
MEDIUM HEAT. I GUESS YOU WILL KNOW HOW TO FIGURE IT OUT IF ANY
QUESTIONS EMAIL ME...
BYE
AUNT NORA