In a bowl, combine the melted and cooled butter, eggs, sour cream and sugar. Mix thoroughly with a whisk.
Add the sifted flour, a pinch of salt, baking powder and 1 tsp ground cinnamon. Mix the dough thoroughly until smooth and smooth.
Spread the dough on the cupcake molds ( I got 8 PCs.).
For the topping, mix 8 tsp sugar and 1 tsp cinnamon.
Sprinkle the top of the cupcakes with cinnamon sugar and send them to bake in a preheated 180 degree oven for 40-45 minutes until ready (we focus on the features of our oven and check the readiness with a wooden skewer).
Ready-made cupcakes are taken out of the oven, let them cool down, brew tea and invite everyone to help themselves!