Preheat your oven to 250 °F.
Use your hand to mix rolled oats and slivered almonds in a large shallow bowl.
Top the mixture with the crushed sweet coconut, cashews and brown dark sugar. Merge the newly added ingredients, cover the bowl and set aside.
In another mixing bowl, mix up maple syrup, vegetable oil and salt. Blend this mixture until the salt dissolves completely.
Now drizzle this syrup-oil mixture over the dry ingredients in the large mixing bowl toss thoroughly.
Divide the mixture equally among two medium sheet pans and place in your pre-heat oven. Cook the mixtures for the next 1 hour and 15 minutes, stirring after every 10 minutes in order to achieve an even color.
Take out the sheet pans from oven and transfer the cooked mixtures into a large serving bowl.
Top it with one cup of raisins.
Sprinkle the Granola with 2 tablespoons of dark brown sugar and drizzle 2 tablespoons of maple syrup over the top. Toss it until equally distributed.
Your homemade Granola is ready; serve it straight away or shift it into an airtight plastic jar and store in your refrigerator.