Preheat oven to 250 degrees.
Have two cookie sheets, lined with a silpat silicone liner or parchment paper, on hand for baking.
Mix dry ingredients in a large bowl and set aside.
Mix wet ingredients in a small bowl.
Combine with dry ingredients and stir well to incorporate.
Spread granola mixture equally on both cookie sheets.
Bake granola for 1 hour. Remove granola from the oven every 20 minutes and stir gently to prevent it from sticking.
Let cool and add raisins.
Store in quart size mason jars or in an airtight container for up to two months. Enjoy on yogurt, on pancakes, or just as a little snack.