When baking two boxes of cake mix in a 9x13 inch pan, you will need to adjust the baking time and temperature accordingly. Typically, you would bake a single box of cake mix in a 9x13 inch pan at 350°F for 30-35 minutes. Since you are doubling the recipe, you may need to increase the baking time by 10-15 minutes, but it's essential to monitor the cake closely towards the end of the original baking time to prevent over-baking. Use a toothpick inserted into the center of the cake to check for doneness - if it comes out clean, the cake is ready.
The number of boxes of cake mix needed depends on the size of your cake pans. Generally, one box of cake mix makes about 4 to 5 cups of batter, which is sufficient for a 9-inch round or square pan. For larger pans, such as 12-inch or 10-inch rounds, you may need 2 boxes, while for a 9x13-inch pan, one box is usually adequate. Always check the specific instructions on the cake mix box for the best results.
You can figure it out exactly by filling a 9 in cake pan with water and then putting in the cake pan you think might be it (do this 3 times). I'm guessing a deep 9x13 pan. A cake mix usually makes 2 9in cakes, or one 9x13. Hope this is helpful
4 boxes for a single pan
Most cake mixes are for a 9x13 pan which is 117 sq. inches. 12x12 is 144 sq. inches. 1 mix would be enough and shorten the cooking time by 5 to 8 minutes.
To accommodate a 12-inch cake, you typically need a cake box that is at least 12 inches in diameter or slightly larger to ensure a comfortable fit. Standard cake boxes come in various sizes, so look for a box that is specifically designed for a 12-inch cake, often labeled as 12-inch or 14-inch to provide extra space. If you're stacking or adding decorations, a slightly larger box may be preferable.
To cut a 9x13 cake into 3x3 bars, first, make sure the cake is completely cooled. Use a sharp knife or a cake cutter to slice the cake into three equal sections lengthwise, creating three 3-inch wide strips. Then, turn the cake and cut each strip into three equal pieces, resulting in nine 3x3 bars. For cleaner cuts, wipe the knife between slices.
For a 12x12x2-inch cake pan, you typically need about 1.5 to 2 standard cake mixes, depending on the brand and recipe. A standard cake mix usually yields enough batter for a 9x13-inch pan, which is smaller than your 12x12 pan. To ensure you have enough batter, consider using two mixes or adjusting the recipe accordingly.
4.5 x 6.5
A 9-inch round pan has a surface area of about 63.6 square inches, while a 9x13 inch pan has a surface area of 117 square inches. To determine how many 9-inch round pans equal a 9x13 pan, you divide the area of the 9x13 pan by the area of the 9-inch round pan. This means approximately 1.84 (or 2) 9-inch round pans are needed to equal the volume of a 9x13 pan.
You can but the mixture will be less thickly spread in the 9 x 13 pan. You may want to increase the amount of batter that you use (assuming you're making a cake or something that spreads to fill the tin).
You can actually use one box alone but it will be thinner. you can actually use the amount of boxes of cake mix you want it will just get thicker.
the 9X13 holds 3 quarts