Preheat the oven to 350 F and line your tray with parchment paper.
Take a medium-size bowl and mix the flour and baking powder well and keep aside.
Take a large bowl and beat the butter along with the sugar until it's light and creamy. Then add the egg and vanilla extract. Beat after each addition.
Add the flour mixture to the butter mixture and mix everything well until it's all combined.
Take this dough and divide it into three parts. Keep one part as it is, to the second part add 2 drops of food color and powdered strawberry (make the powder in a food processor) and mix well. To the third part add the cocoa powder and mix well.
For making the cookies, take small portions ( about 1-2 tsp) from each of the dough and press them gently together, making sure to keep their distinct color intact and then flatten it using your palm.
Place them on the prepared tray and bake for 10-12 mins. Let the cookies cool down completely on a cooling rack. Enjoy!
Transfer cooled cookies to an airtight jar. They stay fresh for two days.