My favorite cookie--in MUFFIN form! These snickerdoodle muffins are soft and tender with a cinnamon sugar topping that will keep you coming back for more.
Add the butter and granulated sugar to a large mixing bowl or the bowl of a stand mixer. Cream together for about 2 minutes, until smooth and well combined.
Add egg. Add vanilla, milk and Greek yogurt and mix until combined.
Bake in preheated oven for about 15-20 minutes or until a toothpick inserted in the center comes out clean (or with just a few moist crumbs).
Allow to cool in the muffin tin for a minute or two before removing to a wire cooling rack.
While the muffins bake, melt the butter for the topping.
In a separate small container mix together the granulated sugar and cinnamon.
Once the muffins are out of the oven and have cooled for just a few minutes, use a pastry brush to brush a thin layer of melted butter over each muffin.
Sprinkle generously with cinnamon sugar mixture. (You can also dip the muffin tops in the melted butter, followed by the sugar, but I've found that they look prettier when you use a pastry brush and then sprinkle the sugar.)