Add the oil into a large sauté pan then add the garlic and chili flakes. Turn the heat up to medium high. As the pan heats up, the oil will slowly get infused with the flavor of the garlic and chili (don't let the garlic brown).
Once the oil is hot and the garlic is fragrant, add the shrimp to the pan. Season them with the paprika, salt and pepper. Cook the shrimp about 2 minutes, until they just turn pink, stirring often.
Add the sherry and lemon juice and cook another 2-3 minutes until the liquid is reduced and shrimp are cooked.
Sprinkle the parsley on top.
Recipe by Chef Tom Cooks ! at http://cheftomcooks.com/2017/01/10/spanish-garlic-shrimp/