Set up butterflied shrimp, flour, and beaten eggs mixed with parsley.
Warm nonstick pan over medium heat with olive oil and butter.
Season shrimp, dredge in flour, dip in eggwash, and fry in batches for 1-2 minutes per side. Drain on paper towels.
Clean pan, cook garlic in butter, add flour, and whisk until smooth.
Stir in white wine, boil, then add chicken stock and lemon juice, and boil again. Adjust seasoning.
Add shrimp and lemon slices to the sauce, heat through for 3-4 minutes.
Stir in remaining parsley and serve over rice, linguine, or with crusty bread. Enjoy!