Measure and add all ingredients to a small container. Whisk together to combine, then set aside until ready to serve. Note that there will be some separation, so either cover and shake well, or whisk again before serving.
For the Couscous Salad
Heat a skillet or pan over medium to medium-high heat. Once the pan is heated, add the butter and allow to melt. Once melted, add the uncooked couscous.
Stir frequently to avoid scorching the couscous. Toast for two to three minutes or until some pieces become darker. Pour in the water and bring to a low simmer. Cover and cook for about 10 minutes, or until all liquid is absorbed. Remove from heat.
Meanwhile, prepare the other ingredients by chopping the prunes and walnuts.
Once the couscous has cooled to room temperature, add all salad ingredients to a mixing bowl and fold together to combine. Once well-mixed, drizzle with the Lemon-Garlic Dressing and mix again. Serve immediately.
Notes
The couscous may be cooked ahead of time and stored in the refrigerator until ready to prep this recipe.To speed up the cooling process, you can spread the cooked couscous on a baking sheet in a thin layer to help the heat dissipate faster.