In a blender, combine all dressing ingredients, blend until smooth and set aside.
Heat oil in a medium skillet over medium high heat. Add garlic and corn. Cook for 10 to 15 minutes, stirring frequently, until corn begins to char slightly. Remove from heat and let cool for 15 minutes.
In a large bowl, combine corn mix, black beans, pepper, onion, and cilantro. Drizzle dressing over everything and toss then serve!