Start by heating the olive oil in a large skillet over medium heat until it shimmers and is just starting to ripple.
Add the minced garlic to the hot oil, and cook for about 30 seconds to 1 minute, until fragrant and golden around the edges. The kitchen should fill with a warm, nutty aroma.
Gently place the shrimp in the skillet in a single layer, pressing them slightly into the oil. Cook for 2-3 minutes without stirring until they start turning pink and opaque on the bottom.
Flip the shrimp over using a spatula and cook for another 2 minutes, until they are fully pink and just cooked through, feeling firm but tender to the touch.
Pour in the fresh lemon juice and add the butter. Stir quickly to coat the shrimp and create a glossy, flavorful sauce that bubbles gently and thickens slightly within a minute.
Sprinkle in the red pepper flakes, taste the sauce, and adjust seasoning if needed—more lemon for brightness or more spice for heat.
Remove the skillet from heat, then sprinkle the chopped parsley over the top for a fresh, vibrant finish, and stir gently to combine.
Serve immediately over rice, noodles, or crusty bread, spooning the garlicky sauce generously over each portion for maximum flavor and presentation.