Our Earl Grey Classic gives these two old friends equal opportunity to shine: the citrus never overwhelms the tea, and vice versa. For a smooth and complex standalone cup, steep for 3 minutes. On the other hand, if you like milk and sweetener, try a 4-minute steep. Earl Grey, the world’s most popular tea blend, requires only two ingredients: black tea and bergamot. This Mediterranean citrus thrives in only a few regions of the world, but ever since it hooked up with Earl Grey, it has landed teacups in every corner of the globe.