You will need the following:
Preheat the oven to 180 degrees Celsius or 380 degrees Fahrenheit. Sift together the flour and baking powder.
In a separate bowl add butter, oil, sugar and vanilla essence.
Beat butter, oil, sugar and vanilla essence well until light and fluffy.
Add eggs, one at a time, beating well after each addition.
Then add half the flour mixture, once you add the dry ingredients do not beat the mixture too much. This will cause the snowballs to rise to a point when you bake them, instead of being flat.
Then mix in half the liquid.
Then, add the rest of the dry ingredients as well as the last of the milk. Once again, do not beat the mixture too much. Divide the mixture between 3 bowls equally. The mixture in one bowl should be left as is. The mixture in the 2 remaining bowls should be colored with a few drops of food coloring, green and red food coloring would do. The mixture should not be too dark, so be careful when adding the color. I use a toothpick to add the coloring.
Spray muffin or bun trays with non stick cooking spray. Place a teaspoon of each color mixture in every cavity. Depending on the size of the snowball, one batch makes about 30 snowballs.
Bake for about 12 minutes until springy to the touch. Allow to cool completely.
Happy baking and keep me posted on your efforts!!