I bring 3 cups of chicken stock to a boil in a medium saucepan. Then I slowly whisk in 1 cup quick grits to avoid lumps. I lower the heat and simmer, stirring frequently for about 15‑20 minutes, until the grits are thickened, smooth, and creamy. At the end I stir in butter, heavy cream, softened cream cheese, and both shredded cheeses until melted and silky.
While the grits are cooking, I crisp diced bacon in a skillet over medium heat until golden and fat is rendered. Then I season the shrimp with Cajun seasoning and sear them in the bacon fat for about 2‑3 minutes per side, until opaque and just cooked. I remove shrimp, then in the same skillet, melt butter, add garlic, scallions, Calabrian peppers, red pepper flakes, chicken stock, lemon juice, and Worcestershire sauce, simmering briefly.
Into the sauce I stir in heavy cream, then return the shrimp to warm through gently. I taste—often adding a squeeze of lemon or pinch of salt—to balance brightness and heat. Then I spoon the creamy grits into bowls, top with shrimp and sauce, garnish with crispy bacon and fresh parsley, and serve immediately for best texture.