Preheat the oven to 400 degree F.
Wash the sprouts, trim the ends and halve them through the core.
Fill a pot with water and bring it to a boil. Add the sprouts cut-side down. Cook for 1-2 minutes, remove them, separate them, and let them cool.
Core the sprouts. (Tip: Watch the video above for this next step. James teaches us how to quickly core the Brussels sprouts in just a few minutes.)
Finely chop the cored out Brussels sprouts pieces. Add the chopped sprout insides and 3 cloves of minced garlic to a sauce pan. Sauté over a medium-high heat. Cook until the chopped sprouts are tender and the mixture is aromatic.
Mix the sprout & garlic mixture with the ricotta, Panko bread crumbs, parmesan cheese, thyme, basil, marjoram and dried sage. Add a dash of salt and taste the mixture. You want it to taste a bit overly salted because it will be less salty once they are baked.
Using a small spoon, fill the Brussels sprouts with the stuffing. Over fill them.
Bake for about 20 minutes at 400 degrees or until the caps are crispy and slightly burnt.