Я люблю клубничный торт.

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Breakdown of Я люблю клубничный торт.

• любить: to love
• торт: the cake
• клубничный: strawberry

Questions & Answers about Я люблю клубничный торт.

Why is it клубничный торт and not клубника торт?

In Russian, when you describe what kind of cake something is, you normally use an adjective, not a second noun.

• клубника = strawberry (the fruit)
• клубничный = strawberry (as an adjective: “strawberry-flavored,” “made of strawberries”)
• торт = cake

So клубничный торт literally means “strawberry cake” / “strawberry-flavored cake.”
Using two nouns together like клубника торт is not how Russian usually works; it sounds ungrammatical. You need to turn клубника into the adjective клубничный to modify торт.

What case is клубничный торт in, and why?

Клубничный торт is in the accusative case (masculine singular, inanimate).

• The verb любить (“to love, to like”) takes its direct object in the accusative.
• The noun торт is masculine inanimate, and for masculine inanimate nouns, the accusative form is the same as the nominative: торт → торт.
• The adjective клубничный must agree with торт in gender, number, and case, so it is also masculine singular accusative, which looks the same as its nominative: клубничный → клубничный.

So grammatically:
Я (nominative) люблю (verb) клубничный торт (accusative object).