Cook pasta according to the package instructions, until it is al dente – about 9 minutes. Drain the pasta and rinse it with cold water to wash off the starch. Transfer the pasta to large bowl and let it cool.

Make the dressing. Using a food processor running with the lid on, drop the garlic and Parmesan cheese down the feed tube and process to fine crumbs. Add the pine nuts and process again. Add the basil leaves and drizzle the olive oil down the feed tube slowly while the processor runs and blends everything together. Add the buttermilk and mayonnaise and process until smooth. Season to taste with lemon juice, salt and pepper. Set the dressing aside.

Add the cucumbers, cherry tomatoes, orange peppers, red onion and fresh mozzarella to the bowl with the pasta. Pour the dressing over the top and toss to coat. Season the salad with salt and fresh ground black pepper and serve chilled.