There are several ways to make a cake moist, according to the search results. Here are some tips:

1. Use buttermilk instead of milk. Buttermilk contains acid that reacts with baking soda or baking powder to create carbon dioxide, which helps the cake rise and become fluffy. It also adds a tangy flavor and moisture to the cake.

2. Add vegetable oil instead of butter. Vegetable oil stays liquid at room temperature, while butter solidifies. Cakes made with vegetable oil will have a softer texture at all temperatures, even straight from the fridge.

3. Use instant clearjel or instant pudding mix. Instant clearjel is a starch that allows your cakes to retain more moisture. Instant pudding mix is a great substitute as it contains instant clearjel as the second ingredient.

4. Use the right recipe. The ratio of wet to dry ingredients determines a cakes moisture level. If theres too much flour and not enough butter, a cake will taste dry. On the other hand, if theres too much milk and not enough flour, a cake will taste too wet. Finding the right balance between wet and dry ingredients is key.

5. Dont overmix. Overmixing your ingredients or not mixing them the right way can make your cake dry because it adds too much air to the cake batter. When your batter is full of air, it tends to deflate in the oven and becomes a dry and dense cake.

6. Dont overbake. Overbaking can dry out a cake. If your cake recipe tends to dry out, the dry and wet ingredient ratio of your cake batter might not be balanced. The next time you make the recipe, add two tablespoons of vegetable oil to the batter to make the cake moist. Some people also find that replacing butter with oil can add more moisture to their cake.

7. Brush with simple syrup. Simple syrup made from equal parts water and granulated sugar heated and stirred until the sugar dissolves can help seal in moisture and keep the cake moist for longer.

By following these tips, you can make a moist and delicious cake that will impress your guests.