Mac and Cheese Soup

INGREDIENTS

• 3 slices bacon, chopped (optional)
• 1 teaspoon bacon drippings
• 1 (7 ounce) package elbow macaroni
• 1 small onion, finely chopped
• 1/4 teaspoon minced garlic, or to taste
• 2 (14 ounce) cans chicken broth
• 1 (16 ounce) jar cheese sauce (such as Ragu® Double Cheddar)
• 2 tablespoons chicken bouillon granules
• 2 teaspoons ground red chili pepper, or to taste
• 1 teaspoon ground black pepper
• 1 pinch crushed red pepper flakes, or to taste