Spray 9 muffin cups with cooking spray. Zest and juice the lemon. Preheat your oven to 400°.
In a large mixing bowl, whisk together the melted butter, oil, yogurt, egg, lemon juice, and lemon zest.
Whisk the flour, sugar, baking powder, and salt together in a small bowl.
Add the dry ingredients to the wet ingredients. Stir gently, just until most of the flour is moistened. Fold in the raspberries.
Divide the batter evenly between the 9 muffin cups. I love using a large cookie scoop to make sure they are all the same size.
Sprinkle the coarse sparkling sugar over the tops of each of the muffins.
Bake at 400° for 7 minutes. Turn the heat down to 350°, and cook for another 11-13 minutes, or until lightly browned. A toothpick inserted in the middle should come out clean.
Let the muffins cool in the pan for about 5 minutes, then invert onto cooling racks.
We love the muffins best served warm, but they are also great at room temperature.