Set up the Vegetable Bowl and the Seasoning Bowl.  Heat the butter in a large skillet over low heat. Add the Vegetable Bowl and sauté until onions are golden (about 10 minutes).  Add the Seasoning Bowl and stir for another 5 minutes.  Add the half & half a cup at a time, stirring after each addition to avoid any lumps (add more half & half to get the right thickness). Salt to taste (very important).  Stir in the shrimp prepared as follows.  

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Shrimp.  Combine the shrimp and Creole seasoning in a bowl and toss with your hands until the shrimp is evenly coated with the seasoning.  Heat the oil in a large skillet.  Add the shrimp and sauté until just cooked. Add the shrimp to the curry and serve over rice.

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