Things You'll Need:
- Green food coloring
- Yellow food coloring
- Small plastic cup
- White cake mix or ingredients to make a white cake
- White frosting, homemade or purchased
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Step 1
Mix up batter for a white cake using a mix or your favorite recipe (see Resources).
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Step 2
Combine six parts yellow food coloring with one part green food coloring in a separate cup. Measure out your food coloring drop by drop if you are using standard liquid food colorings from the grocery store.
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Step 3
Use paste food coloring from the cake-decorating section as an alternative to liquid food colorings. Add the pastes to the cup in the same six-to-one ratio; however, a much smaller amount of concentrated paste is required to achieve the same color.
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Step 4
Make more of the lime green food coloring mixture than you expect to need. Save the remaining coloring to tint the frosting to match your cake.
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Step 5
Stir the lime green food coloring mixture into your cake batter a small amount at a time. Keep in mind that a lot of coloring is needed in order to achieve a true color after baking.
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Step 6
Stir the remaining lime green food coloring into white cake icing. Ice and decorate your lime green cake as desired.
