Preheat oven to 425 f
Add the coarse sugar and lemon zest to a ziplock bag and rub together to infuse. set aside
Line a jumbo muffin pan with jumbo muffins liners (or grease the pan)
In a large bowl, whisk together all dry ingredients
In a separate bowl, add in the eggs, butter and oil and whisk
Tene add the sugar and continue whisking
Next add yogurt, milk and vanilla and whisk some more
Then add the wet ingredients to the dry mixture and fold in until completely combines, do not overmix
Using a large spoon add the batter into the muffin cups, filling just to the top
Sprinkle the tops generously with coarse lemon sugar
Bake at 425 for 5 minutes
Then turn the heat down to 350 and bake for another 25-30 or until the muffins pass the toothpick test
Cool for 10 minutes and then serve and enjoy