In a large bowl combine 1 tablespoon of the olive oil, garlic powder, eggplant. 1 tablespoon of thyme, salt, and black pepper. Arrange as a single layer on the lined sheet pan and cook for 25 min. Flip the eggplant halfway through baking.
Honey Mascarpone
In a small bowl combine the honey and mascarpone until evenly blended. Set aside.
Toasting the bread
While the eggplant is cooling, brush the remaining olive oil on the bread. Toast until golden brown or the edges just start to burn no more than 2 minutes.
Assemble the crostini
Spread the honey mascarpone onto the toast, top with roasted eggplant, then drizzle with aged balsamic and sprinkle the remaining thyme on top.