Hot corn dip

• 4 

  to 5 ears corn, shucked

• Vegetable oil, for brushing

• Salt and pepper, to taste

• 1/2 

  red onion, diced

• 2 

  cloves garlic, minced

• 1 

  red bell pepper, seeded and diced

• 1 

  green bell pepper, seeded and diced

• 1 

  fresh jalapeño, seeded and diced fine (scrap out half the seeds and membranes)

• 2 Tbsp. 

  butter

• 1 

  (8-oz.) package cream cheese, softened

• 1/2 cup 

  mayonnaise

• 1/2 cup 

  sour cream

• 1 lb. 

  monterey jack cheese, grated and divided

• 2 

  green onions, sliced

• Chili powder, for sprinkling

• 1 

  (4-oz.) can diced green chiles

• Tortilla chips, to serve