Step 1

Mix the paprika, ancho chili powder, cumin, sugar and salt together in a large bowl. Add the shrimp to the spices and toss to coat evenly. Set aside.

Step 2

Melt the butter over medium heat in a 12-inch skillet. Add the garlic and cook, stirring with a wooden spoon, for one minute. Do not brown. Add the shrimp and continue cooking over medium heat, stirring frequently, until the shrimp are almost cooked but still opaque in spots, 3-4 minutes. Add the Worcestershire sauce, lemon juice and water and cook until shrimp are done, 1-2 minutes more. Scatter scallions over top and serve.