How to Make It
Preheat the oven to 350°. Roast the jalapeño directly over a gas flame, turning, until charred all over. Let cool, then peel and seed the jalapeño and cut it into 1/4-inch dice.
In a large bowl, mix the artichokes with the jalapeño, mayonnaise, Parmigiano, garlic, lemon juice, lemon zest, salt and Tabasco. Transfer the mixture to a 1-quart baking dish. Bake for about 15 minutes, or until hot.
Preheat the broiler. Sprinkle the shredded cheddar evenly over the hot dip. Broil for about 2 minutes, until browned in spots and bubbly. Serve hot or warm, with crackers.