Place yogurt, sugar, eggs, and oil or melted butter in a bowl. Mix with a whisk or blend with a mixer.
Add flour, baking soda, and baking powder and mix again or blend.
Heat a crepe pan and reduce the heat. Place two tablespoons of batter for each pancake and gently spread the batter into a thinner pancake. Fry three pancakes at the same time because they will rise. Fry on low heat, slowly, until the pancakes rise, for about 2 minutes.
Meanwhile, melt the butter with sugar and cinnamon. Pour the obtained cinnamon butter with a teaspoon onto the top of the pancakes, creating a spiral pattern.
When the pancakes are nicely golden, flip with a spatula to the other side and fry for a shorter time, about a minute. Place on a plate, rinse the pan and fry the next batch of pancakes.