Although you said you're not a fan of milky coffee, if they're 70% Vietnamese beans, you could make Vietnamese coffee with condensed milk as a treat.
Everyone baulked at the idea of Vietnamese egg coffee when I made one a while back. It was actually really good!
@Jonny69 started
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Although you said you're not a fan of milky coffee, if they're 70% Vietnamese beans, you could make Vietnamese coffee with condensed milk as a treat.