- Start by spraying your air fryer safe pan with non-stick cooking spray. Then melt the butter in the microwave, pour it on the bottom, and then sprinkle the brown sugar on the bottom. 
- Then prepare the cake mix. 
- Use the instructions on the cake mix box, and prepare the cake mix, as directed. Each cake mix will be different, mine had eggs, water, and oil. 
- Mix well. 
- Then place the pineapples down (in my second cake, I had lots of batters) and added the cherries, for a more traditional upside-down pineapple cake. 
- Pour the cake mix (prepared) directly over it. 
- Place the cake (uncooked) into the air fryer basket, bake for 320 degrees F, for 25 minutes. Once the timer goes off, use a toothpick and stick it directly in the middle to see if it’s cooked or not. If it’s cook, remove. If it does not add another 5 minutes. Until it’s cooked in the middle. 
- Let cool, before you flip it.