Preheat your oven to 325°F (165°C). Line a baking sheet with parchment paper or a silicone mat.
Mix the dry ingredients: In a large bowl, combine oats, chopped nuts, seeds, flaxseed, cinnamon, and salt.
Whisk the wet ingredients—applesauce, maple syrup, and vanilla—in a smaller bowl. Pour this over the dry mix.
Combine well until every bit of oat and nut is lightly coated.
Spread the mixture onto your baking sheet in an even layer. Gently press it down with a spatula—this helps form those crunchy clusters!
Bake for 25 to 30 minutes, stirring halfway. For chunkier granola, stir only once or skip stirring.
Cool completely on the baking sheet. It crisps up as it cools—don’t skip this step!
Add dried fruit and any optional extras after baking.
Store in an airtight jar at room temperature for up to 2 weeks.