Cristiano Ronaldo scored from the spot as Juventus saw off city rivals Torino 1-0 to hammer home their domination in Serie A.
Juventus travelled to the Stadio Olimpico after their year-long unbeaten record away from home ended with a shock 2-1 Champions League defeat by Young Boys in Bern.
But Ronaldo slotted in his 11th league goal this season, and 5,000th for Juventus in Serie A, after 70 minutes after Torino goalkeeper Salvador Ichazo fouled Mario Mandzukic.
Juvenuts are now 11 points ahead of second-placed Napoli, who travel to Cagliari on Sunday.
Inter Milan are third, 14 points behind the leaders, after Mauro Icardi's 76th-minute penalty sealed a 1-0 win over Udinese on Saturday.
Torino proved dangerous for the champions with Andrea Belotti forcing a one-handed save from Juventus goalkeeper Mattia Perin, with Armando Izzo nodding over after 51 minutes.
But a poor backpass from Simone Zaza to Ichazo saw the Torino goalkeeper foul Mandzukic and five-time Ballon d'Or winner Ronaldo made no mistake from the spot.
The Portuguese is now level with Serie A's top scorer Krzysztof Piatek of Genoa on 11 goals.
It was the seventh straight league win for unbeaten Juventus since being held by Genoa.
Earlier, captain Icardi got Inter back to winning ways with a 1-0 victory over Udinese. Icardi slotted in after 76 minutes at the San Siro with a cheeky 'Panenka' into the centre of goal after a penalty was awarded for a Seko Fofano handball.
It was the 25-year-old's ninth league goal this season and 120th for the club.