Add butter, olive oil, garlic and red pepper flakes to a sauté pan and heat over medium heat.: Close your eyes for a second and breathe in the beginning aroma, you should smell the warm, savory scent of melting butter mingling with the fruitiness of the olive oil as the pan becomes glossy; the tiny pops of the oil will quiet into a gentle shimmer, and as the minced garlic hits the hot fat it will release an intense, nutty, aromatic perfume that signals the sauce is forming. The reason we begin with both butter and olive oil is to marry flavor and raise the overall smoke threshold so the butter does not burn instantly. Keep the heat at medium so you can coax flavor out of the garlic without allowing it to crisp to an acrid brown. A common mistake here is turning the heat too high, which scorches the garlic and leaves a bitter flavor, so adjust early and give the pan a gentle swirl to coat evenly.
Sauté for about 1 minute or until garlic becomes fragrant, being careful not to burn it.: As you sauté, listen for a soft sizzle and look for tiny bubbles forming around the edges of the garlic , and the aroma should blossom from sharp to warm and inviting; this is the moment the fat has absorbed the garlic flavor and is ready to flavor the shrimp . Timing is short here because minced garlic cooks fast, and the goal is translucence and fragrance rather than browning. Stir gently to prevent hot spots and watch the color closely because the window between fragrant and burnt is narrow. If you smell bitterness, reduce heat immediately and consider starting over with fresh oil, since burnt garlic can taint the whole pan.
Add the paprika, lemon juice and shrimp and sauté for 2-3 minutes, until shrimp are pink and cooked through.: Right after adding the paprika and lemon juice , the pan will hiss softly as the acid hits the hot fat, releasing a bright citrus note that lifts the smoky paprika; add the shrimp in a single layer so each one kisses the pan and begins to change color from translucent to opaque with pink edges. As they cook, you should see the flesh firm and curl slightly, and the surface may take on tiny caramelized spots where the proteins meet the hot oil. This quick sear concentrates flavor while keeping the center tender, which is why high heat control matters. A common error is overcooking, which yields rubbery shrimp , so rely on visual cues rather than a timer alone and remove them the moment they are uniformly pink and firm to the touch.
Season with salt and pepper, and pour shrimp and oil into serving dish. Top with parsley if desired and serve with crusty bread for dipping.: After removing from heat, the sizzling will calm and the sauce will look glossy and slightly thickened; seasoning now lets you fine tune the balance because the flavors have melded. Taste a piece of shrimp and add salt a pinch at a time as needed, then a few turns of freshly ground pepper to lift the profile. Pouring the contents into a shallow serving dish traps the warm oil for dipping and showcases the golden bits of garlic and paprika flecks, which is visually appealing. Avoid over seasoning at the start, because once salted it cannot be removed, and if the dish tastes flat after resting briefly, a squeeze more of lemon juice can brighten it immediately.
Top with parsley if desired and serve with crusty bread for dipping: Right before serving, scatter the chopped parsley which adds a fresh green contrast and a herbal lift against the buttery sauce; the smell of the herbs against warm oil is irresistibly inviting. Serving with crusty bread allows everyone to mop up the sauce, transforming those final bites into the best part of the meal. If you skip the bread, consider a neutral starch instead, but be aware that bread is how you get the full comforting experience. One pitfall is letting the dish sit too long after plating, which cools the oil and dulls the aromatics, so serve immediately for the most vibrant texture and aroma.