Set your stand mixer up with a dough hook. Measure the warm water into the bowl and sprinkle over the dried instant yeast. Leave for 5 minutes.
Add the all-purpose flour, kosher salt, sugar, and oil to the bowl. Mix on low for 10 minutes until you have an elastic dough.
Cover the bowl with cling film and leave it to rise for 20 minutes.
Empty the dough on a floured board and knead for 15 minutes. Place in a bowl, cover with cling wrap, and leave for 20 minutes.
Slice the jalapeños into rings and set to one side.
Once the dough has sat for 20 minutes, punch it back down and divide it into three roughly equal balls.
Use your rolling pin to lightly roll the naan into an oval shape, about ½ inch thick.
Push the slices of jalapeños into the top of the naan and sprinkle with the chopped fresh cilantro.
Put a heavy skillet over high heat and allow it to get searingly hot. Place the dough, jalapeños side down, onto the skillet and cook for 1-2 minutes.
Flip the bread and cook for a further 1-2 minutes. Remove to a plate and brush with the butter.