The 20-year-old has enjoyed a sensational start to life at Los Blancos, but experienced a rough patch in front of goal prior to Saturday's match.
Bellingham scored just once in his past eight fixtures, however his latest goal defined his true world class quality.
Vinicius Jr, who scored an excellent curling opener for Madrid, was on hand to provide the assist with a delightful pass with the outside of his boot.
His ball found Bellingham, who took it around Paulo Gazzaniga and slotted into an empty net to make him the first Madrid midfielder in the 21st century to score 15 goals in a single LaLiga season.
Jude then added a second goal from close-range to make it 20 for the club and he sits in their top 100 scorers ever, an amazing feat considering he signed just under eight months ago.
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It also came just a couple hours after his younger brother Jobe scored his latest strike for Sunderland, with the teenager curling in an excellent shot in their 3-1 win against Plymouth Argyle.
Back in Spain, Madrid's win sees them hold a five-point lead at the top of the table over Girona, who have been this season's surprise package.
Bellingham has also surpassed opposition star Artem Dovbyk in the scoring ranks, with his first goal arguably one of the best in his Madrid catalogue.
Whilst he enjoyed another fine performance, his was substituted off just before the hour mark with an apparent injury having gone down twice in the game and looked uneasy as he went off the pitch.
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Despite this, his season so far justifies why many claim him to be one of the best players in world football, especially given how young he is.
Bellingham may have further added to his impressive tally in all competitions, but his eight assists also prove that he can turn provider when needed.
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As well as Madrid fans, England supporters will be keeping a key eye on his excellent form on the approach to Euro 2024.
Vinicius Jr assisted Rodrygo to make it 4-0 as Los Blancos claimed a huge win at the summit of LaLiga.