How much mayo do you use in a box cake mix place of the vegetable oil?

You can replace the vegetable oil in a box cake mix with mayonnaise, but it's not a simple 1:1 swap.

Here's why and how to do it:

* Mayonnaise is denser than oil: It contains a higher proportion of fat, so you'll need to use less than the oil called for in the recipe. A good starting point is to use 3/4 of the oil amount with mayonnaise.

* Mayonnaise has a different flavor: It adds a subtle tang and richness to the cake. This can be desirable, but if you want a more neutral flavor, start with a reduced amount of mayonnaise and add more gradually until you reach the desired taste.

Here's how to adjust the recipe:

1. Start with the box cake mix instructions: Read the instructions carefully and note the amount of oil required.

2. Reduce the oil by 25%: Multiply the amount of oil by 0.75 (or divide it by 4 and subtract that amount from the original).

3. Use mayonnaise: Replace the calculated oil amount with mayonnaise.

4. Mix and bake: Follow the rest of the recipe instructions for mixing and baking.

5. Taste-test and adjust: If the flavor is too strong, you can reduce the mayonnaise by a tablespoon or two next time.

Remember:

* Mayonnaise can make the cake denser and slightly more moist.

* Experimentation is key! You may need to adjust the amount of mayonnaise based on your preference and the specific cake mix you are using.

* If you're unsure, start with a smaller amount of mayonnaise and adjust as needed.

Let me know if you have any other questions about cake baking!