Use high heat (medium-high) to char the cherry tomatoes until their skins burst and blister, concentrating their natural sugars and creating deep, caramelized flavor that forms the foundation of your sauce.

Add pasta water gradually while tossing to create a silky emulsion that binds the cream, tomatoes, and pasta together; the starch helps the sauce coat evenly without becoming heavy or separated.

Toast the tomato paste in butter and olive oil for 1-2 minutes before adding other ingredients to eliminate any raw taste and unlock its complex, concentrated tomato flavor.

Add red pepper flakes and black pepper at different stages—flakes early for infused heat, freshly cracked pepper at the end for bright peppery notes that don't get muted by cooking.

Tear fresh basil by hand just before serving and toss it in off-heat so the warm pasta releases its essential oils without destroying its delicate, aromatic qualities.