Peel shrimp, leaving tails on; devein, if desired. Thread 4 shrimp onto each skewer. Set aside.
Cook brown sugar in a small heavy saucepan over low heat until melted. Add garlic and next 6 ingredients. Cook 5 minutes or until tamarind paste melts. Remove from heat.
Brush shrimp with olive oil. Grill, without grill lid, over medium-high heat (350° to 400°) for 4 to 6 minutes or until shrimp turn pink, turning once, and basting with tamarind glaze. Serve with Smoky Sweet Sauce.
Note: Tamarind is a tree-growing fruit. Its long pods contain a sweet-and-sour pulp from which a paste is made. Look for tamarind paste in the Mexican or Asian section of your grocery store.
Made this tonight for my fiance who is not into spicy. Turned out great. I agree with the others who said you do not need the smoky sweet sauce but we liked it just the same. I did add brown sugar, honey and garlic to the smokey Sweet sauce as it seemed to need more sweetness. Will definitely make this again.
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