If the cake doesn't set, there are a few things you can try to salvage it. You can try placing it back in the oven for a little longer at a lower temperature to help it cook through without burning the outside. Another option is to refrigerate the cake for a few hours to help it firm up. If all else fails, you can crumble the cake and use it as a base for a trifle or cake pops. **

To transport a cake safely, it is best to place it on a flat, sturdy surface such as a cake board or a baking sheet. To prevent the cake from sliding around, it can be placed on a non-slip mat or secured with non-slip pads. It is also recommended to cover the cake with a cake carrier or a large box to protect it from any potential damage during transportation. Additionally, driving carefully and avoiding sudden stops or sharp turns can help ensure the cake arrives at its destination intact. **

If the cake does not set, there are a few things you can try to salvage it. First, you can try placing it back in the oven for a few more minutes to see if it will firm up. If that doesn't work, you can try refrigerating the cake to help it set. If all else fails, you can crumble the cake and use it as a base for a trifle or cake pops. **

To let the cake set in the oven, you should follow the recipe instructions for baking time and temperature. Once the cake is done baking, turn off the oven but leave the cake inside with the oven door slightly ajar. This allows the cake to continue cooking gently with the residual heat, helping it to set and firm up without overcooking. After about 10-15 minutes, you can remove the cake from the oven and let it cool completely before serving. **

If the cake does not set, there are a few things you can try to salvage it. First, you can try putting it back in the oven for a few more minutes to see if it will firm up. If that doesn't work, you can try refrigerating the cake to see if the cold temperature will help it set. If all else fails, you can crumble the cake and use it as a base for a trifle or cake pops. **

To set a quark cake at the bottom, you can start by preparing the crust and pressing it firmly into the bottom of the cake pan. Then, you can pour the quark cake batter over the crust and spread it evenly. Once the batter is in the pan, you can gently tap the pan on the counter to help the batter settle and remove any air bubbles. Finally, you can bake the cake according to the recipe instructions, and once it's done, allow it to cool and set in the refrigerator before serving. **

To transport a cake in warm weather, it is important to keep it cool to prevent melting or damage. One way to do this is by placing the cake in a cooler with ice packs or frozen gel packs to maintain a cool temperature. Another option is to use a cake carrier with insulation to help regulate the temperature. It is also advisable to transport the cake in a flat, level surface to prevent any shifting or sliding during transportation. **

The cream on your cake with fresh pineapple may not set because the pineapple contains an enzyme called bromelain, which can prevent the cream from setting properly. Bromelain breaks down proteins, which can interfere with the structure of the cream and prevent it from thickening. To avoid this issue, you can try cooking the pineapple before adding it to the cream, as heat can deactivate the bromelain enzyme. Alternatively, you can use canned pineapple, as the canning process deactivates the enzyme. **