Wisk the egg replacer with water until fluffy and let it rest for few mins.
In a bowl, cream the butter along with sugars till well mixed. Add the flour, baking soda, salt, vanilla essence and combine well.
Now add the egg replacer to the dough along with chocolate chips and chunks. Combine everything well.
The dough will be little on the dryer side. You can flatten using your palm.
Preheat the oven to 185 C.
Line a baking tray with parchment paper, Pinch equal balls, flatten and place them with enough space for it to spread.
Once preheat done, bake these at 185C for 8 to 10 mins. Please have an eye for the cookies to brown on the sides. The cookies cook as they cool down.
Allow to cool for a few minutes, then transfer cookies to a wire rack to cool.
Store in an airtight container.