I'm not really sure if I can do a white cake and add blue food coloring or the Wilton blue dye or what. Any suggestions would be extremely helpful.

Blue food colouring should work on the same principle as the red colouring in red velvet cake, so I don't see why not! Or you could just do him a Blue's Clues cake - just kiding!

I'd say just make a red velvet cake but swap the red out for blue. Same principal.

i thin k blue coloring would work fine.

Yes just add blue food coloring to white cake!

It works just fine!!!! I made two flag cakes last year with 3 layers, one each of red, white & blue...and all I can say is be careful how much ble you add to your cake mix....it bakes darker than the batter. It did for me anyway, and I was using duncan hines classic white.

Good Luck!!!!

Regular food coloring worked for me. I did this for a red, white, and blue layer cake. I also did green cupcakes for St. Paddy's day. Mine, however, did not bake darker than the batter. Although the red and green turned out fine, I would have added more blue had I have known.

I have found that it bakes up darker than the batter as well........I made my daughter a castle cake for her first birthday and the cake batter was dyed pink and some purple...some white with pink and purple swirls....the pink and purple were more like...blush and lavender...but when they baked up and we actually ate them....they looked like play dough....lol The colors were much darker...but it still tasted wonderful and all the kids loved it!!!

I've even heard of (and tried once for 4th July cake) using Jello in the batter to add color.

the one time I tried it, the cake was a bit "sticky" for my taste (used box mix and jello)

might work better if from scratch and used jello to substitute for part of sugar.