From “Rocco’s Healthy + Delicious” cookbook: “Espresso in meatloaf? Yes, just 2 teaspoons of espresso powder in the topping to amplify the beefy flavor of meatloaf. This recipe is gluten-free, too, since it uses puffed rice (instead of bread) as a binder.” —Food52
Place the puffed rice in a large bowl. Pour the beef broth on top of it and mix well to break apart the puffs.
Add the ground beef and mix well. Season with salt and pepper. Form into a 7 x 4-inch loaf shape and place on a baking sheet. Transfer to the oven and bake for 25 minutes. Remove from the oven and turn the broiler to high.
In a small bowl, mix together the ketchup, tomato paste, Worcestershire sauce, and espresso powder. Brush this over the meatloaf and return to the broiler. Check after 5 minutes. The crust of the meatloaf should be browned and sticky to the touch.