Sweet potato and egg cake

working methods

1, sweet potato 100g, cut into pieces and steam in a pot.

2. Beat in three eggs and beat them delicately with a complementary food machine.

3. Add 30g flour and proper amount of sugar, and stir until there are no particles.

4. Brush a layer of butter under the mold.

5. Preheat the oven at 190 degrees and add the batter for 30 minutes.