1. Heat the oven to 350°F. In a bowl, combine the oats, nuts and seeds, the coconut if you’re using it, cinnamon, salt, and sweetener. Spread evenly on a rimmed baking sheet and bake for 30 minutes or a little longer, stirring occasionally. The mixture should brown evenly; the browner it gets without burning, the crunchier the granola will be.
2. Remove the pan from the oven and add the raisins. Cool on a rack, stirring once in a while until the granola reaches room temperature. Transfer to a sealed container and store in the refrigerator; it will keep indefinitely.
Peanut Butter Granola. Any nut butter or tahini will work nicely here; toss in some chocolate chips if you like very sweet granola: Add 1/2cup peanut butter and mix with the 1/2 cup honey or maple syrup until blended. Proceed with the recipe; stir the granola every few minutes while it’s baking to prevent the peanut butter from burning.
Spiced Granola. Add another teaspoon ground cinnamon, 1 teaspoon ground ginger, 1/2 teaspoon each ground anise and cardamom, 1/4 teaspoon each freshly grated nutmeg and ground cloves, and 2 teaspoons vanilla extract.
Ginger-Molasses Granola. Crumbled gingersnaps are a great addition to this: Substitute molasses for half of the sweetener and add a 1- to 2-inch piece fresh ginger, grated into the sweetener. Add 1/4 cup chopped crystallized ginger along with the raisins.