Preheat oven to 300 degree F. In a large bowl mix the oats, almonds, brown sugar, salt, and cinnamon. In a saucepan warm the oil and honey. Whisk or stir in vanilla. Carefully pour liquid over oat mixture. Stir gently with a wooden spoon; finish mixing by hand.
Spread granola in a 15x10x1-inch baking pan. Bake 40 minutes, stirring carefully every 10 minutes. Transfer granola-filled pan to a rack; cool completely. Stir in raisins or dried cranberries. Seal granola in an airtight container or self-sealing plastic bags. Store at room temperature for 1 week or in freezer for 3 months. Makes 9 cups (24 servings).