Meatier Meatloaf

I don't like meatloaf, but I like this. It came from my monthly Cook's Illustrated magazine put out by America's Test Kitchen. Need I say more?

Ingredients:

2 tablespoons unsalted butter
1 onion, chopped fine
6 ounces white mushrooms, trimmed and sliced thin
1 tablespoon tomato paste
3 tablespoons plus 1/2 cup low-sodium chicken broth
2 garlic cloves, minced
2 large eggs
2 tablespoons soy sauce
1 tablespoon unflavored gelatin
1/2 slice hearty white sandwich bread, torn into 1" pieces
1/3 cup minced fresh parsley
2 teaspoons Dijon mustard
3/4 teaspoon pepper
1/2 teaspoon dried thyme
1 pound ground pork
1 pound 85% lean ground beef

Glaze:
1/2 cup ketchup
1/4 cup cider vinegar
3 tablespoons packed brown sugar
1 teaspoon hot sauce
1/2 teaspoon ground coriander

Directions:

*NOTE: This took way longer than I anticipated. I failed to see that it would take 75-90 minutes to cook, and then 20 minutes of sit-time before serving. Please learn from my mistake, and if you don't want to eat dinner at 10 pm, don't start it when I did.  Whoops.

1. Preheat the oven to 350 degrees.  To prep the pan, fold heavy-duty aluminum foil to form a 9" by 5" rectangle.  Center foil on wire rack set in a rimmed baking sheet.  Poke holes in the foil with a skewer about 1/2 inch apart.  Spray foil with vegetable oil spray.

2. Melt butter in a skillet over medium heat.  Add onion and mushrooms; cook, stirring occasionally, until beginning to brown, 10-12 minutes.  Add tomato paste and cook, stirring constantly until browned, about 3 minutes.  Reduce heat to low; add 3 tablespoons broth and garlic; cook, scraping bottom of pan to loosen any browned bits, until thickened about 1 minute.  Transfer mushroom mixture to large bowl to cool.
3. Whisk eggs, remaining 1/2 cup broth, and soy sauce together in bowl.  Sprinkle gelatin over egg mixture and let sit until gelatin softens, about 5 minutes.
4. Pulse bread in food processor until finely ground, 5 to 10 pulses. Add gelatin mixture, cooled mushroom mixture, parsley, mustard, pepper, and thyme to bread crumbs and pulse until mushrooms are finely ground, about 10 pulses.  Transfer bread-crumb mixture to large bowl.  Add pork and beef and mix with hands to thoroughly combine.
5. Transfer meat mixture to foil rectangle and shape into 9 by 5 inch loaf using wet hands.  Bake meatloaf until it registers 155 to 160 degrees, 75 to 90 minutes. Remove from oven and turn on broiler.

For the glaze:
6. While meatloaf cooks, bring all ingredients to simmer in small saucepan over medium heat.  Cook, stirring occasionally, until thick and syrupy, about 5 minutes.
7. Spread half of glaze evenly over cooked meatloaf; place under broiler and cook until glaze bubbles and begins to brown at edges, about 2 minutes.  Remove meatloaf from oven and spread evenly with remaining glaze; return to broiler and cook until glaze is again bubbling and beginning to brown, about 2 minutes longer.  Let meatloaf cool for 20 minutes before slicing and serving.