01 -
Set your oven to 350°F (175°C) and let it warm up.
02 -
Warm a little oil in a pan over medium heat. Toss in the shrimp and crab along with 2 cloves of minced garlic. Cook for around 2 minutes or until the shrimp changes color, and the garlic smells lovely.
03 -
Squeeze in the lemon juice and stir it well. Add the cream cheese pieces, and keep stirring until they fully dissolve (takes 3-4 minutes). Mix in Old Bay seasoning, 1 tbsp parsley, chili flakes, and a sprinkle of salt and pepper. Taste it, adjust if needed, and take it off the heat.
04 -
Melt the butter in a saucepan over medium heat. Add the chopped onion and the rest of the minced garlic. Stir and cook until you see the onions turning soft and clear, about 3-4 minutes.
05 -
Put the tomato paste into the pan and combine it with the softened veggies. Let it cook for 3 minutes, allowing the paste to stick a little for better flavor.
06 -
Pour in cognac, scrape the bottom to mix in the bits sticking there, and reduce the liquid to about half.
07 -
Add the tomato purée and cream, then stir it together. Sprinkle in red chili flakes and parsley. Keep simmering until the sauce feels a little thicker (5 minutes). Adjust salt and pepper, then turn off the heat.
08 -
Spread the tomato sauce on the bottom of a 9x13-inch dish. Use a small spoon to stuff each pasta shell with seafood mix until full. Nestle each shell into the sauce inside the dish.
09 -
Sprinkle parmesan on top of the shells. Pop the dish into the oven until it's hot and bubbly, and the cheese melts—around 20-25 minutes.
10 -
Pull it out of the oven, let it sit for 5 minutes, and serve with extra parsley and chili flakes on top.