Though there was no specific hit on Hallelujah, this album contains Canned Heat's fully developed blues chops and a slightly newfound political edge. Of special note is "Sic 'Em Pigs," an entertaining anti-police anthem, featuring drummer Fito de la Parra, Alan Wilson, and Henry Vestine making pig noises. Canned Heat Cookbook was the first greatest-hits compilation from the band, released originally in 1970, and contains the band's three hit singles, "Goin' Up the Country," "On the Road Again," and "Let's Work Together" (the latter wasn't actually part of the original LP; it was added to this 2002 compilation by Fuel 2000).
Canned Heat's second long-player, Boogie with Canned Heat (1968), pretty well sums up the bona fide blend of amplified late-'60s electric rhythm and blues, with an expressed emphasis on loose and limber boogie-woogie. The quintet – consisting of Alan "Blind Owl" Wilson (guitar/harmonica/vocals), Larry "The Mole" Taylor (bass), Henry "Sunflower" Vestine (guitar), Aldolfo "Fido" Dela Parra (drums), and Bob "The Bear" Hite (vocals) – follow up their debut effort with another batch of authentic interpretations, augmented by their own exceptional instrumentation. One development is their incorporation of strong original compositions. "On the Road Again" – which became the combo's first, and arguably, most significant hit – as well as the Albert King inspired anti-speed anthem, "Amphetamine Annie," were not only programmed on the then-burgeoning underground FM radio waves, but also on the more adventuresome AM Top 40 stations. Their love of authentic R&B informs "World in a Jug," the dark "Turpentine Blues," and Hite's update of Tommy McClennan's "Whiskey Headed Woman".
These are the earliest-known recordings of Canned Heat with the primordial lineup of Alan "Blind Owl" Wilson (guitar/harmonica/vocals), Stuart Brotman (bass), Henry "Sunflower" Vestine (guitar), Bob "The Bear" Hite (vocals), and either Keith Sawyer (drums), or perhaps his replacement, Frank Cook (drums), who joined circa 1966. Another notable name among the personnel listed on the original LP jacket is rhythm & blues legend, Johnny Otis as producer. This is certainly fitting, as the Heat wind their way through compact, high-energy versions of a variety of selections, directly contrasting the longer psychedelic showcases that would evolve over the next few years.