Preheat your oven to 220°C (430°F). Line a baking sheet with parchment paper for easy cleanup.
Cut the broccoli into bite-sized florets, keeping some of the stem attached for added texture. Spread them out on the prepared baking sheet, ensuring they’re in a single layer for even roasting.
In a small bowl, mash the garlic cloves into a smooth paste; this releases their aroma and helps them roast evenly.
In a large bowl, toss the broccoli with the garlic paste, olive oil, and a generous pinch of sea salt until all pieces are well coated. The oil should glisten on the surface, and the garlic should be evenly distributed.
Spread the coated broccoli evenly on the prepared baking sheet, making sure pieces aren’t crowded to allow proper airflow and crisping.
Roast in the oven for 15-20 minutes, flipping or tossing halfway through. Keep an eye on the edges—you want them deeply golden and slightly charred, with the garlic turning fragrant and golden without burning.
Once roasted, remove the baking sheet from the oven and squeeze fresh lemon juice over the broccoli. Toss gently to combine, allowing the bright citrus to balance the smoky richness.
Let the broccoli rest for 2-3 minutes to allow flavors to meld and the garlic to settle into its golden, nutty aroma.
Serve immediately, garnished with extra lemon or a sprinkle of Parmesan or toasted nuts if desired, for added flavor and crunch.