2. Stir evenly with a manual whisk to melt the sugar.

3. Mix the flour and baking powder and sieve them in.

4. After mixing well, add butter and lemon peel that have been melted in advance.

5. Put the mixed cake paste in the refrigerator 1 hour or so.

6. Put a layer of butter on the doughnut mold, sprinkle some cranberries, and chop the cranberries as much as possible.

7. Put the frozen cake paste into a framed bag and squeeze it into a doughnut cake mold.

8. Put it into the middle layer of the oven preheated in advance, with the fire on 165 degrees and the fire off 170 degrees, and bake for 12 minutes.