The ex-Guns N' Roses guitarist revealed that he and his band are recording the songs live, rather than with multiple overdubs.
Slash told Total Guitar: "We're just going for the one take that sounds good, so my solos are more raw, probably sloppier in a way, because they're very spontaneous to the point where it's in the heat of the moment.
"Everything is being played live with the music tracks: the solos, everything. We're trying not to overdub extra bits. So if there's a solo, I'm playing on one side, singer Myles [Kennedy]'s rhythm track is on the other."
Slash's 2010 solo debut featured contributions from former Guns N' Roses stars Izzy Stradlin, Duff McKagan and Steven Adler.
It also boasted guest vocals from Ian Astbury, Ozzy Osbourne, Fergie, Chris Cornell, Kid Rock, Iggy Pop, Lemmy, Nick Oliveri, Alice Cooper, Cypress Hill, Nicole Scherzinger and others.
Earlier this week, Slash won the 'Best Live Album' prize for Made in Stoke 24/7/11 at the Ultimate Classic Rock Awards.
Last year, Axl Rose suggested that the classic Appetite For Destruction lineup of Guns N' Roses could reunite in 2012 to mark their Rock 'n' Roll Hall of Fame induction.
Watch the Slash 'Beautiful Dangerous' (feat Fergie) music video below: