Melt butter in a large skillet over medium-high heat; add onion and next 5 ingredients, and saut 5 minutes or until onion is tender. Stir in garlic, and saut 1 more minute.
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.