KHLOE Kardashian has shown off her adorable matching Halloween costume with her 1-year-old son Tatum during a spooky backyard soiree.

The Kardashians star went all out on a fearsome and fun seasonal party over the weekend.

Khloe Kardashian hosted a lavish Halloween party at her million Hidden Hills mansion
Khloe Kardashian hosted a lavish Halloween party at her $17million Hidden Hills mansionCredit: instagram/khloekardashian

She and her son, Tatum, matched in adorable cow onesies
She and her son, Tatum, matched in adorable cow onesiesCredit: instagram/khloekardashian

Khloe dressed as a brown cow and Tatum had traditional black spots
Khloe dressed as a brown cow and Tatum had traditional black spotsCredit: instagram/khloekardashian
Khloe, 39, shared many pH๏τos and videos from the event, including ones of her adorable mother-son matching Halloween costumes.

The reality star and her little one Tatum both dressed as cute cows for the holiday celebration.

The TV personality wore a furry brown onesie complete with a black tank top underneath.

Khloe paired the look with white sneakers and a silver chain necklace.

Khloe filmed True making her own purple slime mixture, adding different ingredients to create the perfect color.

The Keeping Up With the Kardashians alum clearly went above and beyond for the spooky holiday, spending tons of money to entertain family and friends.

Khloe threw an over-the-top Halloween party for her family and friends
Khloe threw an over-the-top Halloween party for her family and friendsCredit: Instagram/KhloeKardashian

She had crafts, games, and snacks for the kids
She had crafts, games, and snacks for the kids