Start by washing the sugar snap peas thoroughly and trimming the ends. Slice them diagonally for a more elegant look and better texture. If using fresh corn, cook and remove kernels from the cob. Let everything cool before mixing.
Slice the red onion very thinly to avoid overpowering the salad. If you prefer a milder taste, soak the slices in cold water for about 5 minutes. Drain well before adding to the bowl.
In a small bowl, whisk together olive oil, lemon juice, and honey. Add salt and pepper according to your taste preference. The dressing should be light, tangy, and slightly sweet.
In a large mixing bowl, combine snap peas, corn, and red onion. Pour the dressing over the vegetables and toss gently. Make sure everything is evenly coated without crushing the ingredients.
Sprinkle crumbled feta cheese and chopped basil over the salad. Toss lightly again to incorporate. Taste and adjust seasoning if needed before serving.