To make the peanut butter cold foam, combine the heavy cream, one tablespoon of milk, peanut butter powder, maple syrup, and vanilla bean paste in a small cup or jar. Use a handheld electric milk frother to blend the ingredients continuously until the mixture thickens, expands, and turns into a pillowy foam, then set it aside.
In a separate small dish, combine the jam and hot water, stirring vigorously until the jam dissolves and becomes a smooth, pourable syrup consistency.
Fill your favorite tall serving glass with a generous amount of fresh ice.
Drizzle the freshly made jam syrup directly over the ice cubes. Then add milk, top with espresso, and finish with the cold foam on top. Give the latte a good stir to mix all the sweet and nutty flavors together right before taking your first sip. Enjoy immediately!