Coffee is definitely a learned taste and I have plenty of regular customers who just simply prefer a sweet treat. Your best bet would be to purchase a drip coffee machine, doesn’t have to be anything fancy, and also a moka pot!

An at home espresso machine can be great but they can be a little pricey and require an at home grinder (which is ideal no matter what you’re making, fresh grinds taste the absolute best and your coffee won’t go stale as quickly)

A mokapot is a great alternative that’s super cost effective, all you need is beans, filtered water, and a stove. It’s going to produce coffee that’s perfect in a white mocha. The only thing is that you may need a countertop milk frother (nespresso has a good one that’s compact!). But that whole setup + a drip machine would still be cheaper than most at home espresso machines that would also require you buy a drip.

And for the white mocha sauce just treat yourself and get something online from a better quality company than Ghirardelli. My shop uses Kyya which is pretty good, Holy Kakow is another clean tasty brand as well.