This easy chocolate glaze is smooth, rich, and just sweet enough—like the glaze on a classic chocolate doughnut. It takes just minutes to make and adds the perfect finishing touch to any single layer cake, especially this chocolate version!
To make the glaze, whisk together powdered sugar, cocoa powder, salt, and hot water, then stir in the butter until smooth. If it’s too thick, add a bit more hot water—too runny, add a little extra powdered sugar.