Firstly preheat the oven to 350 degrees Fahrenheit
Line a 7-inch cake pan with parchment paper and grease with butter spray. remove excess spray
Add all-purpose flour, milk powder, pistachio, baking powder, baking soda to a mixie jar; ground into a fine powder
Take milk in microwave-safe bowl and microwave for 2 minutes, keep it aside
Take sugar and oil in a separate bowl and mix well
Furthermore, pour the hot milk, kewra water, green food color into the oil-sugar bowl and mix well
Transfer the ground flour and mix gently. Avoid overmixing
If you see lumps, transfer to the mixie jar and pulse 1 or 2 times. Avoid high-speed grinding
Transfer the cake batter and tap the pan to remove the air bubble
Bake for 30-35 minutes until a toothpick inserted comes out clean
Cool the cake for 10 minutes then invert and unmold the cake. cool the cake completely