Add flour, baking powder and salt together in a bowl and mix well.
Dissolve butter into 1 cup of water. Pour water into flour mixture and mix until blended.
Cover with plastic wrap for 15 minutes. Separate dough into 10 balls. Balls are a little larger than a golf ball.
Place dough balls into the bowl and cover with plastic wrap. Let stand for 10 minutes.
Heat a skillet on medium heat.
Roll each ball onto a lightly floured surface until about 9-10" in size.
Place onto a hot skillet and heat for about 2-3 minutes or until bubbles form. Flip and cook for an additional 30 seconds.
Remove from pan and keep warm.
Repeat until all dough balls are rolled and cooked into tortillas.
Wrap cooked tortillas in foil to keep warm for serving.
Notes
Salted Butter vs Unsalted ButterIf you are using salted butter, I'd say cut the salt down to 1 teaspoon. So.... 1 teaspoon salt with 1/2 cup salted butter OR 2 teaspoons salt with 1/2 cup unsalted butter.