Smokin' Dave's Cafe's Fiery Cajun Shrimp Alfredo

INGREDIENTS

• 1 tablespoon freshly ground black pepper
• 1/2 medium onion, minced
• 1/2 teaspoon hot chili powder
• 1/2 cup (1 stick) unsalted butter, sliced
• 6 tablespoons Essence, plus more for garnish, recipe follows
• 3 shakes Worcestershire sauce
• 5 cloves garlic, minced
• 1/2 teaspoon kosher salt
• 1 1/2 pounds large shrimp, peeled and deveined
• 2 cups heavy cream
• 1 pound linguine
• 1 1/2 cups grated Parmigiano-Reggiano
• 10 ounces andouille sausage, chopped
• 1 cup whole milk
• 1 1/2 teaspoons crushed red pepper flakes
• Chopped fresh flat-leaf parsley, for garnish
• 2 tablespoon extra-virgin olive oil