Step 1

In the bowl of a food processor, combine toasted sugar, white chocolate, dark chocolate, Dutch cocoa, malted milk powder, instant espresso, salt, and vanilla powder (if using). Pulse until chocolate is fully ground and mixture looks powdery and dry. Transfer to airtight container and add the leftover vanilla bean pod (if using). Store at cool room temperature up until the date stamped on the package of white chocolate.

Step 2

To use, stir about 1 ounce (2 tablespoons; 28g) of the mix into 6 ounces hot milk. Season to taste with additional salt or vanilla, and serve hot.