To make dough by hand: Place 1¼ cups self-rising flour in a large bowl. Add 1 cup yogurt and stir with a fork until a shaggy dough forms. Knead the dough on a lightly floured surface until smooth, about 8 minutes. Add a few tablespoons water if the dough seems dry or a few tablespoons flour if it is sticky.
To make the dough in a stand mixer: Place 1¼ cups self-rising flour in a stand mixer fitted with the dough hook. Add 1 cup yogurt and mix at low speed until a smooth dough forms, 3 to 4 minutes. Add a few tablespoons water if the dough seems dry or a few tablespoons flour if it is sticky.
To make the dough in a food processor: Place 1¼ cups self-rising flour in a food processor fitted with the steel blade. Add 1 cup yogurt and pulse until a smooth dough forms, about 15 pulses. Add a few tablespoons water if the dough seems dry or a few tablespoons flour if it is sticky.