Cold Brew can be made in a matter of minutes, but the key is just making it before you need it. I recommend making it the night before because cold brew generally steeps for around 10 to 16 hours. Cold Brew only requires coffee of your choice grounded (finely or coarsely) and water. The principal of cold brew is letting the water and coffee infuse over time instead of using heat. It generally carries a smoother or richer taste.
Before you start making your caffeine gold, you need to invest in a cold brew mechanism. If you happen to have a mason jar and some cheesecloth, that is one way to steep it without buying a traditional cold brew maker. I don't recommend using this method if you plan to drink cold brew often, but is a budget-friendly option.
The Ovalware RJ3 Cold Brew Maker is a great option and is extremely easy to use. This product uses an infusion method by keeping the ground contained in a metal cylinder while the water infuses with the coffee. It also includes specific details about how much coffee to use and how water amounts will affect your cold brew. You can check it out on Amazon here. Other cold brew makers, such as the Bodum Bean Cold Brew Coffee Maker, use a french press method where the coffee and water mix until your press the plunger down to contain the grounds. Both are great methods and will produce great tasting coffee.
Once you have created your delicious cold brew, you can either enjoy it black or with creamer. My personal favorite is the Silk Sweet and Creamy Almond Milk Creamer. It is super smooth and adds enough creaminess and sweetness without overpowering that coffee flavor. Recent coffee trends, such as whipped foam or syrup additives, can also amp up your coffee game.