Preheat your oven or toaster oven to 400°F (200°C).

Place the sliced peaches in a small baking dish or on a lined baking sheet.

Drizzle the peaches with one tablespoon of maple syrup and sprinkle evenly with cinnamon.

Roast for 15 minutes, or until the peaches are soft and slightly caramelized. Remove from oven and let cool for 5 minutes.

While the peaches are cooling, whip the Greek yogurt with the vanilla extract (if using) in a small bowl until smooth.

Assemble the parfaits by placing a spoonful of yogurt at the bottom of two serving glasses.

Add a layer of warm roasted peaches, followed by a sprinkle of pecan granola.

Repeat the layers until the glasses are full, finishing with granola and the remaining maple syrup drizzle.

Serve immediately while the fruit is still warm.