Preheat the oven to 175°C/350°F.
Line a baking tray with baking paper and set aside.
Combine the margarine, sugars, and agave nectar in the K-Beater on high for 2 minutes, or until it is creamy.
Add the egg replacer (this is the equivalent of one egg) and the vanilla extract. Beat for a further 2 minutes.
Scrape down the sides of the bowl to ensure all the ingredients are fully combined.
Add the flour and raising agents to the bowl and beat for 30 seconds, or until the cookie dough has just come together. It is important to not overmix here.
Add your special extras such as oats, salted pretzels, chocolate chips, etc. You can really pack a lot of ingredients in there, so don’t worry about adding too much! Beat for a further 30 seconds.
Using an ice cream scoop, two spoons, or your *clean* hands, scoop out walnut-sized rounds onto a baking tray. These cookies do not spread too much in the oven but keep about 4cm between each mound of dough.
Bake the cookies in the oven for 10-12 minutes.
Serve and enjoy your customizable “Kitchen-Sink” cookies!