To make pickle Pepsi at home for free or very cheaply, you essentially need just Pepsi, pickles, and pickle brine. The simple method is to put a couple of pickles and some pickle brine into a glass, then pour Pepsi over it. This replicates the pickle-flavored Pepsi drink some places sell, but homemade without the cost. Here is the basic step-by-step:

• Take two pickles from a pickle jar and place them in a glass.
• Add a small amount of pickle brine (the liquid from the pickle jar) to the glass.
• Pour Pepsi over the pickles and brine.
• Stir if you like or enjoy as is.

This method was demonstrated in a recent video where the creator showed making pickle Pepsi at home for free, highlighting that it tastes quite good and is much cheaper than buying it ready-made.