Put flour, salt and baking powder together in a large bowl and mix together well. Add the butter and rub it lightly into the flour mixture with your fingers until it resembles crumbles. Make a well in the middle and add the water. Lightly knead the mix for about 1-2 minutes, cover and leave to stand for 10 minutes.
Cover your countertop with flour generously and make the dough into roughly 10 balls. Cover the balls with plastic wrap if you don't use them straight away. With a rolling pin, again generously dusted with flour, make sure you rol out each ball as thin as possible, shaking off excess flour before putting it in the pan.
on the stove heat a non stick frying pan until very hot. Without adding oil or butter put the rolled out circle of dough in the pan and bake quickly for 1-2 minutes on each side. it will start to bubble straight away and it will be done when it has brown spots all over the tortilla. Repeat for the remaining balls.
I did remove the flour from the pan after each tortilla as that will stick and start to burn if you leave it in. So I just wiped it quickly with a dry cloth in between tortilla's.