How To Make Dark Blue With Food Coloring - Web all you need is red cabbage and a bit of baking soda to create blue food coloring for icing, cocktails, art projects,. Web to get a darker shade of blue, use a toothpick to add a little bit of red gel food coloring to the blue frosting.
Web all you need is red cabbage and a bit of baking soda to create blue food coloring for icing, cocktails, art projects,. Web to get a darker shade of blue, use a toothpick to add a little bit of red gel food coloring to the blue frosting.