Creating Thai Spaghetti Salad is straightforward with these detailed steps:

1. Cook the Spaghetti: Bring a large pot of salted water to a boil. Add the spaghettini and cook according to package instructions until al dente. Drain and rinse under cold water to cool.

2. Prepare the Vegetables: While the pasta is cooking, slice the red bell pepper, shred the carrots and cabbage, and chop the cucumber. Add all the vegetables to a large mixing bowl.

3. Make the Dressing: In a small bowl, whisk together the peanut butter, soy sauce, lime juice, honey or maple syrup, sesame oil, and chili garlic sauce. Adjust the flavors as needed. You can add more lime for acidity or honey for sweetness.

4. Combine Pasta and Veggies: Once the spaghetti is cool, add it to the bowl with the prepared vegetables.

5. Mix in the Dressing: Pour the dressing over the pasta and vegetables. Toss everything well to ensure even coating.

6. Add Optional Ingredients: If desired, fold in the roasted peanuts for added crunch and sprinkle the chopped cilantro over the top.

7. Chill: Allow the salad to sit in the refrigerator for at least 15 minutes before serving. This helps the flavors meld beautifully.