Steps: 1. Old brown sugar is not easy to melt because of its high temperature, so it needs to be broken into paste with a cooking machine. 2. Add corn oil and eggs to the bowl. 3. Add old brown sugar. 4. Stir thoroughly until mixed. 5. Add baking powder and baking soda and stir well. 6. Add low-gluten flour and refined salt. 7. Mix well with a scraper and form a dough. Tip: Don't take the baked peach crisp out of the oven in a hurry. Before baking, stew in the oven for 10 minutes, and the taste will be more crisp.