1-First step: Build the flavor base Place a large skillet over medium heat and add the butter and olive oil. Once the butter melts, add the chopped onion, green bell pepper, and celery. Cook for about 4 to 5 minutes, stirring now and then, until the vegetables soften and the onion turns translucent. Add the minced garlic and cook for 30 seconds more, just until fragrant.

2-Second step: Add the flour and seasoning Sprinkle the flour over the vegetables and stir well so it coats everything evenly. Let it cook for about 1 minute to remove the raw flour taste. Then stir in the Cajun seasoning and cayenne pepper. This is where the sauce starts to build its deep, smoky flavor.

3-Third step: Brown the sausage Add the sliced Andouille sausage to the skillet. Cook for 2 to 3 minutes, stirring often, until the sausage starts to brown a little. The edges should pick up color, which adds more flavor to the sauce. If the pan seems dry, the butter and oil should keep things moving, but you can add a small splash of broth if needed.

4-Fourth step: Add broth and tomatoes Pour in the chicken broth slowly while stirring to keep the flour from clumping. Add the diced fire-roasted tomatoes with their juices. Stir well and bring the mixture to a gentle simmer. Let it cook for about 5 minutes so the sauce thickens slightly and the flavors begin to blend.

5-Fifth step: Cook the grits While the sauce simmers, bring 3 cups chicken broth to a boil in a separate saucepan. Add salt to taste. Slowly whisk in the quick grits, then reduce the heat to low. Cook according to the package directions, stirring often, usually about 5 to 7 minutes. When the grits are creamy and tender, stir in the Parmesan cheese, heavy cream, and freshly ground black pepper. Taste and adjust the salt if needed.

6-Sixth step: Add the shrimp Once the tomato and sausage sauce has simmered, add the shrimp in a single layer if possible. Stir them gently into the sauce so each one gets coated. Cook for 3 to 4 minutes, just until the shrimp turn pink and opaque. Do not overcook them, since shrimp can turn rubbery quickly. If you are unsure, cut one open to check that the center is no longer translucent.

7-Seventh step: Finish with cream and parsley Lower the heat and stir in the heavy cream. Add salt and freshly ground black pepper to taste, then fold in the chopped parsley. The sauce should look glossy and rich, with shrimp nestled among the sausage and tomatoes. If the sauce feels too thick, add a small splash of broth. If it feels too thin, let it simmer for another minute or two.

8-Final step: Serve hot Spoon the creamy Parmesan peppercorn grits into bowls, then ladle the smothered shrimp and sausage over the top. Finish with extra parsley for color and a little more black pepper if you like that bold bite. Serve right away while the grits are soft and the sauce is hot.