Cinnamon Doughnuts

First, preheat the oven to 180 °C and prepare a non-stick doughnut pan.

While the oven is preheating, prepare the doughnut batter: In a medium bowl, mix melted butter with 1 teaspoon of lemon juice and 150 ml of milk. Add all-purpose flour, cane sugar, baking powder, baking soda, cinnamon, and a pinch of salt to the liquid mixture and work into a smooth batter. Then pour the prepared batter into the doughnut pan.

Place the pan in the oven and bake the batter for 10–12 minutes until golden brown at 175–180 °C. Meanwhile, mix sugar with cinnamon in a deep plate.