Quick and Easy Chicken Tikka Masala

Ingredients

• 1 medium onion, finely chopped
• 1 lb chicken breast, cut into 1-inch cubes
• 1 1/2 teaspoons pre-minced ginger
• 1 tablespoon lemon juice
• 1/2 cup fresh cilantro, chopped
• 1 teaspoon sugar
• 4 tablespoons garam masala
• 2 teaspoons salt
• 3 teaspoons pre-minced garlic
• 2 14 oz cans diced tomatoes
• 2 tablespoons olive oil, divided
• 1 14 oz can coconut milk