How do I make a Rainbow sponge cake with all Vegetarian Ingredients?

Wilton makes vegan food coloring (http://www.wilton.com/). You may want to check at your local health food store (Trader Joes, Whole Foods, Vitamin Cottage, etc.) or order it off the internet.

Another option, which would probably require some creativity, is to make your own food dyes. Beets can make the food pink, blueberries a blue/purple, blend some spinach into the wet ingredients to get green, etc.

Here's some ideas: http://www.ehow.com/how_2302808_make-natural-food-...

http://g0lubka.blogspot.com/2010/05/maple-leaf-sna...

Hope that helps!

C

Yes there's take a look at the next For the sponge: 6 ounces (a hundred seventy five g) self-elevating flour one million rounded teaspoon baking powder three gigantic eggs 6 ounces (a hundred seventy five g) caster sugar 6 ounces (a hundred seventy five g) butter, very tender at room temperature ½ teaspoon vanilla extract For the filling: eight ounces (225 g) raspberries three-four tablespoons tender set raspberry jam one million x 250 g bathtub mascarpone one million x 2 hundred ml bathtub fromage frais one million stage tablespoon caster sugar one million teaspoon vanilla extract To serve: a bit of icing sugar Pre-warmth the oven to fuel mark three, 325°F (a hundred and seventy°C). You can even want 2 eight inch (20 cm) one million½ inch (four cm) deep sponge tins, flippantly greased and covered with silicone paper (baking parchment). Take an overly gigantic blending bowl. Measure the flour and baking powder right into a sieve and sift right into a bowl, keeping the sieve relatively top to deliver the flour a well airing because it is going down. Now all you do is with ease upload all of the different sponge components to the bowl and, supplied the butter is quite tender, you simply pass in with an electrical hand whisk and whisk the whole lot in combination till you've gotten a soft, good-mixed blend. This will take one million minute however, if you happen to shouldn't have an electrical hand whisk, you'll use a picket spoon with somewhat extra attempt. What you currently emerge as with is a blend that drops effortlessly off a spoon while you deliver it a faucet at the aspect of the bowl. If it does appear a bit of too stiff, upload one million-two tablespoons of faucet water and blend once more. Now divide the blend among the 2 tins, stage it out and situation at the centre shelf of the oven. It will take 30-35 mins to prepare dinner – do not open the oven door till half-hour have elapsed. To experiment if they're cooked or no longer, contact the centre flippantly along with your little finger; if it leaves no affect and is derived again, the sponge is cooked. Next, get rid of them from the oven then watch for approximately five mins earlier than turning them out directly to a cord cooling rack. Carefully peel off the bottom papers, depart the sponges to get wholly bloodless, then upload the filling. For the filling, mix the mascarpone and fromage frais in a bowl; a balloon whisk will amalgamate them faster. Add the extent tablespoon of sugar and one teaspoon of vanilla extract. Now unfold one tablespoon of jam over one of the vital sponge truffles, comply with this with part the cream blend then scatter the raspberries in every single place that. Now upload the rest cream blend and drizzle it with the leisure of the jam. Place the moment sponge cake on best. Press very flippantly to sandwich the whole lot in combination, then flippantly dirt the cake with icing sugar earlier than serving.