Cheesy Corn Spoon Bread

Ingredients

• 1/4 cup butter, cubed
• 1 medium onion, chopped
• 2 large eggs
• 2 cups sour cream
• 1 can (15-1/4 ounces) whole kernel corn, drained
• 1 can (14-3/4 ounces) cream-style corn
• 1/4 teaspoon salt
• 1/4 teaspoon pepper
• 1 package (8-1/2 ounces) cornbread/muffin mix
• 2 medium jalapeno peppers, divided
• 2 cups shredded cheddar cheese, divided