Chicken Tortilla Soup

1 tablespoon olive oil

4 corn tortillas cut into squares

1 1/2 tablespoon garlic minced

2 tablespoon white onion minced

1 1/2 teaspoon jalapeno pepper minced

1 pound white corn kernels

1 1/2 pounds tomatoes chopped

1/3 cup tomato paste

2 1/2 teaspoons cumin

1 tablespoon kosher salt

1/2 teaspoon chili powder

1 1/2 cup water

1 quart chicken stock