2/3 cup whole milk (you can use any percent milk you prefer)
6 tablespoons white chocolate chips
2 shots espresso
whipped cream
Add milk and chocolate chips to saucepan and heat until chips are melted.
Meanwhile make coffee in espresso machine.
Pour a shot of espresso into each mug, then pour half the milk mixture into each coffee mug , add a dollop of whipped cream.
Enough for 2 small mugs or 1 large mug.
If your machine has a frothing/steam wand (which I gather it does, as you say it’s a cappuccino maker too and assuming you have all the needed equipment), then you can steam the milk in a metal steaming pitcher (aim for a temp of 140-160). and simply melt the chocolate ships in a microwave. (or, of course you can simply do it in a saucepan as this recipe says or you can microwave the milk and chocolate together until melted and at your preffered drinking temperature).
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Years ago, when I worked as a barista at Starbucks, we used Ghiradelli white chocolate sauce and sometimes drizzled caramel sauce over the whipped cream. If you don’t want to buy white chocolate sauce, I recommend the above recipe as it’s an easy, close tasting version for the home coffee enthusiast
I recommend buying Ghiradellis white chocolate chips, btw.
Hope this helps!