Combine the marinade ingredients in a bowl, add the chicken and set aside for at least 30 minutes.
Heat your pan/wok add oil on medium high heat.
When the oil is hot, add the cumin seeds then the onions
Saute until the edges start to change color and then immediately add your marinated chicken.
Stir the chicken well, sautéing until it's all changed color.
Add a splash of water, bring it to a simmer then turn down the heat and cook for 20-25 minutes or until the chicken is tender.
Turn up the heat and dry up the masala, sauteing occasionally, until the oil rises above it, the masala starts to stick to the bottom just a little and the chicken takes on a lovey golden hue. Taste and adjust seasoning.
Rice
Wash the rice well, rinsing till the water turns more or less clear, and soak for at least 30 minutes.
Place all the ingredients listed in the Potli/Rice Bundle category and set aside until ready to cook
Bring a large pot of salted water to boil with the potli in it
Add the washed rice and cook until the grains of rice will break easily with a little pressure, but not become mushy. For me this is usually anywhere between 7-10 minutes.
Drain the rice and remove the potli.
Layering
Place half your rice on the bottom of your rice pot
Gently spoon over every single bit of your chicken biryani masala
Add the mint, cilantro, and green chilies.
Top with remaining rice
Now squeeze over a little lemon juice and add a few drops of kewra. Steam on low heat for 20-25 minutes.
Video
Notes
Rice: The best way to cook rice for biryani is in an excess of water as it allows the grains to fluff up and takes the guesswork out of cooking the rice. I typically add 2 tbsp (measuring not serving) to the water and taste it to see if it's salty tasting. Ideal Sequence for Making White Biryani (IMHO)
Marinade Chicken, refrigerate until 30 minutes before cooking
Wash and soak rice
Make the Potli
Slice onions
Cook time: Start the chicken first, boil the rice water and cook rice whenever convenient for you.
Aloo lovers: Yes you can add potatoes to this, just toss cubed chunks of one large or two small potatoes in when simmering the chicken to tenderness.