How many grams of sugar is in a piece of toast?

I don't know exact how many grams of sugar there are in a cupcake, but there is obviously a lot of sugar in just the frosting itself! Maybe 20 grams! Try to avoid frosting by scraping it off! Try to especially scrape off frosting for kids or if they really like frosting, keep just a little amount. Hope that answers your question! (Maybe...)