1. Peel shrimp, and, if desired, devein.
2. Melt butter in a large skillet over medium-high heat; add onion and next 5 ingredients, and sauté 5 minutes or until onion is tender. Stir in garlic, and sauté 1 more minute.
3. Stir in shrimp, and cook, stirring occasionally, 6 minutes or just until shrimp turn pink. Remove and discard bay leaf.
*2 lb. frozen peeled, large raw shrimp, thawed according to package directions, may be substituted.