If you have time, check out the link at the bottom of this entry. It has step by step photos of this recipe as well as a little history on the company.
1/4 cup unsalted butter
1/4 cup vegetable oil
1/2 cup granulated sugar
1/3 cup brown sugar
2 large eggs
1 1/2 teaspoons baking powder
1/4 teaspoon baking soda
1 teaspoon ground nutmeg
3/4 teaspoon salt
1 teaspoon vanilla extract
2 2/3 cups All-Purpose Flour
1 cup milk
3 tablespoons melted butter
3 tablespoons Cinnamon-Sugar Plus or cinnamon sugar (1 tsp cinnamon + 1/3 C sugar...something like that)
Preheat the oven to 425°F. Lightly grease a standard muffin tin. Or line with 12 paper or silicone muffin cups, and grease the cups with non-stick vegetable oil spray; this will ensure that they peel off the muffins nicely.
In a medium-sized mixing bowl, cream together the butter, vegetable oil, and sugars till smooth. Add the eggs, beating to combine. Stir in the baking powder, baking soda, nutmeg, salt, and vanilla.
Stir the flour into the butter mixture alternately with the milk, beginning and ending with the flour and making sure everything is thoroughly combined.
Spoon the batter evenly into the prepared pan, filling the cups nearly full.
Bake the muffins for 15 to 17 minutes, or until they're a pale golden brown and a cake tester inserted into the middle of one of the center muffins comes out clean.
Remove them from the oven, and let them cool for a couple of minutes, or until you can handle them. While they're cooling, melt the butter for the topping (this is easily done in the microwave).
Use a pastry brush to paint the top of each muffin with the butter, then sprinkle with the cinnamon-sugar. Or simply dip the tops of muffins into the melted butter, then roll in the cinnamon-sugar.
Serve warm, or cool on a rack and wrap airtight. Store for a day or so at room temperature.
Yield: 12 medium muffins, King Arthur Flour blog