Adpated from the much-loved Maialino's Olive Oil Cake. The sugar has been cut from 1 3/4 to 1 1/2 cups. The Grand Marnier has been swapped out for bourbon and muddled bitters, giving these muffins a hint of an Old Fashioned, leaving the rich interior intact. Muffin-sized makes them easy to share and allows you to indulge without guilt. —Katey501
Pre-heat oven to 375 degrees. With a mortar and pestle, muddle 8 dashes of bitters with 2 sugar cubes. In a large bowl, add sugar cubes, flour, sugar, baking soda, salt, and baking powder. Mix well and set aside.
In a medium bowl, add olive oil, milk, bourbon, orange juice, orange zest, and eggs. Whisk well to make sure all ingredients are thoroughly mixed together. Line two 12-muffins tins with paper liners or grease and flour pans. (Non-stick cooking spray with flour works well too)
Gradually add wet ingredients to dry, mixing batter with a wooden spoon. Once all wet and dry ingredients are well-mixed, spoon batter into each muffin well to 2/3 full.
Bake for 30-35 minutes. Start checking at 30 minutes. The tops may not crack like a cake will, but do check for the tops turning golden to light golden brown. Also check for doneness by inserting a toothpick or cake tester into centers of each. It will come out clean if done.
Allow muffins to cool in pans for 20-25 minutes before turning out. Sprinkle with powdered sugar, if desired.