Place flour, yogurt, butter, yeast, milk and salt in a large bowl.
Mix together with a spoon, then use clean hands to bring everything together and form a sticky dough.
Cover and place in a warm spot for 45 minutes or until doubled in size.
Dust a clean work surface with flour, and tip out the dough.
Knead for two minutes to bring everything together.
Divide the dough into 8 equal portions.With your hands, pat and flatten the dough to shape each portion into ovals or rounds, roughly 3mm thick.
Top generously with jalapeños (or green chilies), coriander (cilantro) leaves, white sesame seeds and black sesame seeds.
Place a grill pan or cast iron pan over medium-high heat.
Once hot, place naans, one at a time, and cook for 1 to 2 minutes on each side.
Brush the flatbreads with melted butter.
Serve with your favorite curry.