Preheat the oven to 425 degrees F.
Bring a large pot of salted water to a boil. Once boiling, gently drop in the brussels sprouts and boil for about 7 minutes. While they’re boiling, prep an ice bath.
As soon as the 7 minutes are up, relocate to the ice bath to stop the cooking process. If the sprouts soften too much, they won’t crisp up well. Drain the water and pat dry with a paper towel.
In a large bowl, toss the sprouts with the oil, garlic powder, paprika, sea salt, nutritional yeast, agave, and balsamic vinegar. Arrange on a greased parchment lined baking tray and use the bottom of a glass to gently “smash” them into a flattened disc. Be careful not to over flatten them or they may come apart.
Bake until crispy, about 25-30 minutes, making sure to rotate the pan 180 degrees halfway through. Enjoy immediately, or keep in an airtight container in the fridge to enjoy throughout the week.