Melt butter in a 12-inch nonstick skillet over medium-low heat.
Add garlic, and cook until fragrant and just starting to toast, about 3 minutes.
Add shrimp and turn heat up to medium. Sauté for 3 minutes, until shrimp are fully cooked.
Remove shrimp from pan with slotted spoon.
Pour in chicken broth, then lemon zest, lemon juice, red pepper, and salt.
Turn heat up to medium-high and bring to a low boil. Simmer for 2 minutes. Taste sauce, and add more salt and lemon juice if needed.
Stir in ½ of the chopped parsley.
Add shrimp back to pan, along with any juices on the plate.
Cook for another minute, stirring gently, until shrimp are fully warmed.
Serve, garnished with the remaining parsley.
Notes
Storage Tips: Leftovers can be stored for 2 days in an airtight container in the refrigerator.To freeze this dish, wait until shrimp has cooled completely before freezing, and place in an airtight container. Defrost in the refrigerator overnight, then reheat gently (over the stovetop is preferred.)Expert Tips: For extra flavor, don’t be afraid to play around with other herbs or spices. You can add oregano, thyme, or basil to this dish (fresh or dried), or up the lemon flavor even more by adding more lemon juice. Also, add more or less of the crushed red pepper depending on your spice tolerance.