Step 1

Melt butter in a large skillet over medium heat. Add garlic, shallot and red pepper flakes, and cook, stirring frequently, until fragrant, about 2 minutes.

Step 2

Add shrimp; season with salt and pepper, to taste. Cook, stirring occasionally, until pink and cooked through, about 3-4 minutes.

Step 3

Stir in parsley, lemon juice and lemon zest.

Step 4

Serve immediately.