Step 1

In a large mixing bowl, stir together the Brussels sprouts, avocado, clementines and pistachio kernels.

Step 2

In a small bowl, whisk together the grapefruit juice, olive oil, garlic, salt and pepper until it is fully combined. The dressing should look cloudy -- which means it's emulsified and ready to use.

Step 3

Pour the dressing over the Brussels sprouts mixture and toss to combine. Taste, and season with additional salt and pepper, as needed.

Step 4

Chill until ready to serve.