
Step 1 · Make the Chermoula
Finely grate the zest from both lemons and set aside for serving, then, into a medium bowl, squeeze 2 tablespoons lemon juice. Stir in the cilantro, parsley, olive oil, garlic, paprika, cumin, salt and sugar and set aside until ready to use. (You can keep the chermoula in a sealed container in the fridge for up to 5 days.)
Step 2 · Prepare the Orzo
Heat the butter and olive oil in a large pot over medium-high until the butter is melted. Add the orzo and keep stirring until the orzo is lightly golden, about 3 minutes.
Step 3 · Cook the Orzo
Add in the chermoula and stock and bring to a boil. Reduce the heat to low and cover the pot. Cook, stirring occasionally, until orzo starts to soften, about 10 minutes. If it looks like the orzo is too dry, add a couple of tablespoons of water to the pan.
Step 4 · Add the Shrimp
Stir in the shrimp and cover the pot again until the shrimp and the orzo are both cooked through and most of the liquid has evaporated, 4 to 6 minutes more. Taste and adjust the seasoning with salt if necessary.
Step 5 · Serve
Serve immediately, topped with the grated lemon zest.