First you need to boil, roast or grill the corn.
For grilling on the stovetop, heat a large pan or grill pan over medium-high heat.
Add the fresh corn and use tongues to rotate the corn every few minutes.
Grill until browned all over.
Set aside to cool.
Meanwhile prepare the salad dressing.
In a small bowl whisk together the olive oil, lemon juice, vinegar, sugar, salt, garlic and freshly ground black pepper. Set aside until ready to use.
Cut the vegetables.
Cut the corn kernels from the cob and transfer to a large bowl.
Add tomatoes, cucumber, onion, avocado, green chili pepper, basil and parsley and Feta cheese. Add the dressing and toss well to coat.
Add more salt if needed and enjoy!