Make the raisin and spice mixture by combining the first ten ingredients - granulated sugar, brown sugar, salt, cinnamon, ginger, nutmeg, cloves, water, raisins, and molasses in a saucepan.
½ cup granulated sugar, ½ cup brown sugar, 1 teaspoon salt, 4 teaspoon cinnamon, ½ teaspoon ground ginger, ¾ teaspoon ground nutmeg, ½ teaspoon ground cloves, 1 cup water, ½ cup raisins, 2 tablespoons molasses
Stir to mix and heat over medium heat until it comes to a low boil. Adjust the heat to keep it at a low boil for 5 minutes.
Preheat the oven to 375℉ and prepare a 12 cup muffin tin with non-stick spray. Do not use cupcake liners for these muffins.
In a mixing bowl, combine the whole wheat flour, all-purpose flour, oats, baking soda, and baking powder.
1 cup whole wheat flour, ½ cup rolled oats, 1 teaspoon baking soda, ¾ teaspoon baking powder, ½ cup all-purpose flour
Whisk all these dry ingredients together and then, in another bowl or measuring cup, beat the egg and oil together.
½ cup vegetable oil, 1 large egg
Add the egg and oil to the dry ingredients along with the cooled raisin and spice mixture.
Stir with a wooden spoon just until the ingredients come together. You don't want to over mix and risk getting a tough and dry muffin.
Fill the muffin wells about ¾ full, dividing the batter evenly among the 12 muffin wells.
Bake for 15 minutes in the preheated oven. A toothpick inserted into the centers should come out with just a couple crumbs sticking to the toothpick.
Cool in the pan for about 10 minutes then tip them out on to a cooling rack that is set over a sheet tray. Keep them bottoms up. Let them cool a little longer.