
Pre-heat oven to 400F/200C. Grease and flour or line with paper cups a 6 regular size muffin tin.
In a large bowl whisk together the sugar, flour, baking powder, salt and chocolate chips.
In a medium bowl whisk until combined the egg, oil, milk, ricotta and vanilla.
Add the wet ingredients to the dry ingredients and stir just to combine, approximately 15-16 stirs. Fill the muffin tin and bake for 10 minutes, lower the heat to 350F/180C and continue to bake for another 10 minutes or until a tooth pick comes out clean or with a few crumbs attached. Let cool for 10 minutes in the pan, then move to a wire rack to cool completely. Dust with powdered sugar before serving. Enjoy!