preheat oven to 375°F. spray mini muffin pan with non-stick cooking spray with flour.

in a medium bowl, stir flour, baking powder, salt, nutmeg, and baking soda.

in a separate bowl, wisk together milk and buttermilk.

in a large bowl, beat butter and sugar with a mixer until light and fluffy. beat in eggs,1 at a time, until just combined. set the mixer on low speed, and beat in one fourth of the dry ingredients. then beat in one third of the milk mixture. continue to alternate until all ingredients are incorporated, finishing with dry ingredients. be careful not to over mix.

fill the prepared muffin cups with batter. bake until lightly golden and firm to the touch, about 15 minutes. let the muffins cool in the pan for 5 minutes. remove the muffins from the tin and let cool.

combine cinnamon and sugar in a large resealable bag. once the muffins have cooled, brush each one with the melted butter. then place a few muffins in the bag with cinnamon and sugar mixture. shake well to coat the muffins. Repeat.