Quick n' dirty?
I'd suggest recording stereo tracks using a Tascam DR-05, you could even use two separate recorders for guitar and vocal, combining them in your DAW later. The DR-05 has omni mic capsules which can contribute to a fuller sound.
The huge advantage of this is it unchains you from your DAW environment and lets you record anywhere since there's no noise from computer fans, hard drives, etc.
I just did a VERY quick n' dirty audio recording of a newly built acoustic guitar (posted in the general section...
https://www.acousticguitarforum.com/...d.php?t=578582 ) and combined it with a VERY poor quality video (done with Reaper) to demo how the guitar sounds. You can see the DR-05 about a foot in front of the guitar.
I'm sure if you play with positioning a bit you could get a very clean recording of both guitar and vocal using a single DR-05 if you wanted. You could also turn the recorder 90 degrees to have the mics facing up and down, balancing in your DAW later.