Take a wide mixing bowl. Add in the whole wheat flour, oatmeal, sugar, honey, vanilla essence, ghee or butter, a pinch of salt, chocolate chips, milk and mix well. Then add oil and knead well. (I recommend you use olive oil or coconut oil.)
Make a non-sticky oatmeal cookies dough. If it is sticky, sprinkle whole wheat flour and knead till you get a non-sticky dough. If the dough is too hard, sprinkle little more milk.
Remove the gasket and whistle from the lid of the pressure cooker. I have used a pressure pan as we can bake more cookies in the same time.
Close the pressure cooker with the pressure cooker lid. Heat the cooker on a high flame for 5 minutes. Do not add water.
Take a lemon sized dough to roll. Roll it into a ball shape and flatten it by pressing gently. Do not apply too much pressure. (Don't make it a very flat one.)
Let the cookies be at least 1/8 inches in height. Once you shape them, place few choco chips here and there on top of the cookies. Press gently.
Now, it is time to prepare the cooking pan. Choose a cake pan or wide plate as I have shown in the picture. Add 1/2 tsp ghee or butter in the pan and grease the pan well.
You can use a cake pan which you can place inside the cooker or you can use any super thick stainless steel or aluminium bowl .
Place the cookies one by one on the pan. Leave at least 1/4 inches gap between the cookies.
Once the cooker is preheated for 5 minutes, open the cooker lid. Carefully place the cooker plate or any perforated stainless steel plate.
Then place the cake pan inside the cooker on top of the separator plate. The cooker will be very hot. So, make sure that you use a good and steady pot holder to put the cake pan inside the cooker.
You have two options. Either you can use the pressure cooker lid itself. Or you can use any thick stainless steel lid just to cover the pan (not the whole cooker). It is your choice.
If you are using a pressure cooker lid, make sure that you do not have the whistle and gasket on it.
If you are using pressure cooker lid, cover the cooker with the cooker lid. If you are just covering with steel plate, cover the cookies pan alone.
Keep the flame in low-medium (slightly higher than simmer) flame for 10 minutes. It will take 15 minutes approximately to get chewy and soft cookies.
If you want it to be crispy, you have to cook for few more minutes. Remember that the cookies get little harder once we allow them to cool.
After 10 minutes, the bottom of the cookies might have turned to golden brown in color. Keep the flame in low if it starts turning golden brown. If not, keep it in the same low-medium flame.
Keep watching. The top of the cookies should be tender and cooked. Take care that the bottom of the cookies do not get burnt.
Once the cookies are cooked, transfer it to a bowl or cooling rack. Allow it to cool down completely.
Serve it hot to enjoy the healthy, soft and chewy oatmeal cookies. (You can also store the cookies in an airtight container. It stays well in room temperature for 4-5 days. Keep it in fridge for a longer shelf life.)