Preheat the oven to 175°C (350°F) and line a baking tray with parchment paper to prevent sticking.
Mix the dry ingredients: In a large bowl, combine the rolled oats, nuts, seeds, chai spice, protein powder, and salt. Stir until everything is evenly distributed.
Prepare the wet ingredients: Gently melt the coconut oil in a saucepan or microwave until fully liquefied. Remove from the heat and stir in the maple syrup and vanilla extract until well combined.
Combine wet and dry: Slowly pour the liquid mixture over the dry ingredients. Stir thoroughly to ensure the oats, nuts, and seeds are evenly coated with the coconut oil mixture, creating a slightly sticky texture.
Bake: Spread the granola mixture evenly across the prepared baking tray, pressing down lightly to create an even layer. Place it in the oven and bake for 20-25 minutes, stirring halfway through to ensure even browning. Keep a close eye on the granola, as it can quickly turn from golden brown to overdone.
Cool and store: Once the granola is fragrant and golden, remove it from the oven and let it cool completely on the tray. As it cools, it will crisp up even more. Once cooled, transfer it to an airtight container to keep it fresh and crunchy for up to two weeks.