Preheat oven to 350 F. Spray with non-stick oil.
Mix the flour, salt, and baking soda using a wire whisk. Set it aside
Add the lemon to the milk and let it sit until it is curdled. Set it aside.
Add the sugar and eggs to the mixing bowl and mix them until they turn pale in color. Add the melted butter and mix until smooth. .Add the yogurt, milk mixture, and the lemon zest. Mix until the ingredients are incorporated
Add the flour mixture. Use a spatula to mix this batter so as not to overmix.
Transfer to the prepared pan and bake at 350 F for twelve minutes. In ten minutes, start checking the cake using the toothpick method. Let the muffins cool down and top it with the prepared icing.
