Position two racks in upper and lower third of oven. Preheat the oven to 375°F/190°C.

Stir together the chopped artichoke hearts, 2 tablespoons of oil, vinegar, basil, oregano, red pepper flakes and generous pinches of salt and pepper and allow to marinate while you prepare the bread.

Cut off the top of the sourdough bread and pull out most of the center of the bread in large pieces, leaving a ¾-inch (2 cm) shell to the bread round. Cube the top piece that you removed and the bread that you pulled from inside the bread and toss all of these cubed pieces in a bowl with 1 tablespoon of the oil. Season lightly with salt and pepper and scatter on a rimmed baking sheet pan (leaving room for the bread bowl later); set aside.

Now let’s make the dip! The only trick to this recipe is squeezing the spinach as dry as possible. I dump it in a colander and use the back of a sturdy spoon to press out as much liquid as possible. Then I wrap the spinach up in a clean linen towel, twist the ends of the towel as firmly as possible and squeeze over the sink. A lot more liquid should exude. Dump the dry spinach into a large microwave safe mixing bowl.

To the mixing bowl holding the spinach, add the marinated artichoke hearts (with the marinade), cream cheese, sour cream, mayonnaise, Parmesan, scallions and half of the mozzarella. You will need some elbow grease and a sturdy wooden spoon. Mix all of the ingredients very well together until thoroughly mixed. Scrape into a microwave safe bowl and cover.

Microwave on high for about 1 minute, stir it around, then microwave for 1 minute more. You just want to heat it up until it is hot throughout.

Place hollowed out bread bowl on a corner of the pan holding the bread cubes and scrape the hot dip into the bread bowl. Top dip with remaining mozzarella. Place bread bowl on upper oven rack and the pan holding the bread bits on the lower rack. Bake the bread pieces until toasty and the bread bowl until the mozzarella is melted and gooey - probably about 10 minutes.

Serve immediately with your choice of dippers - and try to use some restraint with your portions!