Select a kettle or pot large enough to hold all the artichokes you are cooking. Half fill it with water and set it over high heat to boil. Meanwhile, trim the artichokes.

Rinse the artichokes, cut 1/4 inch of the bottom stem off.  Rub the cut areas with lemon. Slice off the top inch of each artichoke and rub the cut area with lemon. Using kitchen shears snip off the top half inch of each leaf.   Cut each artichoke in half lengthwise and scrape out the fuzzy choke with a teaspoon.  Place the artichokes and lemon rinds in the boiling water, lower heat to simmer and cook for 15 minutes.  Remove artichokes from the water and drain.

Heat grill to medium-high heat.  Then grill the artichokes for 10 - 15 minutes. Turn frequently.  Remove from the grill and serve with Piri Piri Dipping Sauce.

Piri Piri Dipping Sauce

Combine piri piri sauce, lemon juice, chives, mayonnaise and sour cream.  Stir well to combine.  Season with salt and pepper.  Serve with grilled artichokes.