Begin by washing your broccoli and cauliflower thoroughly under running water. Shake off the excess moisture and set them on a cutting board.
Using your sharp knife, cut the broccoli into bite-sized florets. Repeat the process with the cauliflower, ensuring the pieces are roughly the same size for even mixing.
In a large mixing bowl, combine the chopped broccoli and cauliflower. Add the capers to the bowl for an extra zing.
In a separate bowl, whisk together the lemon juice, extra virgin olive oil, crushed garlic, minced shallot, kosher salt, and black pepper. Adjust the seasoning to taste.
Pour the dressing over the vegetable mixture and toss gently to coat all the ingredients evenly. Be careful not to bruise the delicate florets.
For the best flavor, let the salad sit in the refrigerator for about 30 minutes before serving. This allows the flavors to meld beautifully.