1 tablespoon fresh lemon zest plus 1 tablespoon juice (from 1 lemon)
½ teaspoon red-pepper flakes
Kosher salt and black pepper
4 garlic cloves, minced
2 tablespoons unsalted butter
1 cup orzo
⅓ cup dry white wine
2 cups boiling water, seafood stock, or chicken stock
3 tablespoons finely chopped parsley
Fresh Parmesan cheese
In a medium bowl, stir together the shrimp, 1 tablespoon olive oil, the lemon zest, red-pepper flakes, 1/2 teaspoon salt, 1/4 teaspoon pepper and half the garlic.
Set aside to marinate (this step can be done up to 1 hour in advance).
To a medium skillet, add the butter, the remaining olive oil and garlic, and heat over medium.
When the butter starts to bubble, add the orzo and 1/2 teaspoon salt and cook, stirring often, until the orzo is toasted, about 2 minutes, adjusting the heat as necessary to prevent the garlic from burning.
Carefully add the wine (it will bubble) and stir until absorbed, about 1 minute.
Stir in the water or stock, reduce heat to low, cover, and cook until the orzo is al dente, about 12 minutes.
Add the shrimp in a snug, even layer on top of the orzo, cover, and cook until all the shrimp is pink and cooked through, 2 to 4 minutes.
Remove from heat and let sit, covered, 2 minutes.
Sprinkle with Parmesan cheese, parsley and lemon juice, season to taste with salt and pepper and serve immediately.