These cupcakes are from scratch, no cake mixes involved. I have adapted a recipe from bakingbites.com. My daughter wanted to make some rainbow cupcakes for a friend who was hit by a car. She had made them before using a cake mix & I wasn't really happy with the end result. This is what we came up with. You can use paper liners, silicone cupcake liners or grease your muffin tins. If you use silicone liners or grease your tins the colours show very nicely. The cupcakes are not too sweet & the olive oil makes them nice & moist. Frost with plain buttercream, cream cheese frosting or strawberry cream frosting. Decorate with sprinkles if desired. I ended up with 24 cupcakes & 1 small loaf when I made these. I might try using frozen fruit juice concentrates to colour the batter another time to see if it is possible to avoid using food colouring.