Preheat your oven to 350°F / 175°C.
In a large pot over low heat, gently warm the oil and honey until they are well combined, but do not let the mixture boil.
Remove from heat.
Add all remaining EXCEPT the raisins and cranberries to the pot.
Stir until every oat and nut is evenly coated. 2.
Spread one-half or one-third of the mixture in a thin, even layer on a large baking sheet.
Bake for 10 minutes.
Then, continue baking for another 5-10 minutes, tossing the granola with a spatula every few minutes to ensure it cooks evenly. Pay close attention to the edges, as they tend to brown faster. The granola is ready when it's a light golden brown and fragrant. It will still feel slightly soft but will crisp up perfectly as it cools. 3.
Remove the baking sheet from the oven.
Transfer the hot granola to a large bowl and immediately toss with the corresponding portion of raisins and cranberries (the heat helps them soften slightly). Allow the granola to cool completely.
Repeat the process with the remaining batches.
Once fully cooled, store in an airtight container or jar. It will keep in the refrigerator for up to 3 months.