Lemon wash and grate the sheet. Is squeezed juice. Eggs are broken down with sugar and add the oil, lemon juice and rind. Mix everything and in a separate container mix the flour, baking powder and vanilla. The dry blend was added to the wet under continuous stirring with a mixer. Finally, add the yogurt and mix carefully. The oven was heated to 180C ° and shape muffin covered with paper baskets being filled 3/4 of the mixture. Bake 15-20 minutes. Decorate of your choice