Whisk baking powder, sugar, 2 cups flour, and 2 tsp. salt in a large bowl. Add yogurt and stir to combine (the yogurt’s acidity ensures a tender texture). Transfer dough to a lightly floured work surface and knead until mostly smooth, about 1 minute. Divide into 4 pieces, cover with plastic wrap, and let rest 15 minutes (this will make dough easier to roll).