Preheat oven to 350 F
Spray mini muffin tin with nonstick cooking spray
Blend together greek yogurt, vegetable oil, egg, vanilla and 1/2 cup sugar.
In a separate bowl, whisk together flour, baking soda, salt, 1/2 tsp cinnamon, and 1/4 tsp nutmeg.
Combine wet and dry ingredients and spoon 1 tablespoon of batter into mini muffin tins
Bake for 10-12 minutes, or until golden and springy to the touch
Cool in pan for 5 minutes and transfer to a wire rack to finish cooling completely
In a medium bowl, combine 1 cup sugar, 1 1/2 tsp cinnamon and 1/2 tsp nutmeg
Dip each muffin briefly in melted butter and then immediately coat in sugar mixture
Serve immediately and enjoy!