In a large mixing bowl, combine the all-purpose flour, active dry yeast, sugar, and salt. Mix well.
Add the plain yogurt and warm water to the mixing bowl. Mix the ingredients together until a dough is formed.
Knead the dough for 5-7 minutes until it becomes smooth and elastic. Cover the mixing bowl with a clean kitchen towel and let the dough rise for 1-2 hours, or until it has doubled in size.
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