Yes, VG nic and dissolving the EM crystals in VG should get you there.
Okay, time to take it up a notch! I started searching around for ECOPure +EM and found several links of people attempting to mimmic this amazing flavor.
Ethyl Maltol
Caramel Popcorn and "Pirated Pure" diy recipes
Relevant snippets,
"My daily vape I call "Pirated Pure" due to it's my homebrew copy of a UK VG liquid.
Start with Ethyl Maltol Crystals 1/4 tsp to 9ml Everclear, shake until dissolved. ( again I like strong, can adjust here. 1/4 to 10ml is the average recipe I've seen)
Makes 20ml of 8mg
4.4 ml of 36mg VG nic liquid
12.6 ml of my VG mix listed above (80/20 vg and distilled water)
3ml of the Ethyl Maltol/Everclear mix
( this is at 15%. You can add a few more drops if you want it stronger)"
This sounds like a good start. Any hints of adding a _VERY_ light hint of tobacco? ECOPure Rich definitely has more than just EM in it. I suspect it's some form of tobacco flavoring as this was advertised on Intelli's site. However, it's very very subtle.
I'd be very interested in attempting to brew my own. If the community can help me narrow down some ingredients to start with I'd definitely explorer this possibility. Need to stop vaping my ECOPure Rich to make sure I have enough left to compare it to my batches!!