Creamed Corn with Spicy Shrimp

Name: Creamed Corn with Spicy Shrimp
Ingredients: 10 ears of white corn, shucked (or 1 1/2 pounds frozen kernels, thawed); 3 tablespoons unsalted butter; 1/3 cup finely chopped onion; kosher salt and freshly ground pepper; 1 1/2 tablespoons canola oil; 1 teaspoon red pepper flakes; 4 cloves garlic, sliced; 1 pound shrimp, peeled and deveined, tails intact, thawed if frozen; 1 tablespoon fresh lemon juice; 1/2 cup very loosely chopped basil leaves; 1 tablespoon very loosely chopped basil leaves