How Can I Make Rainbow Dough with Sharp Color Stripes?

How Can I Make Rainbow Dough with Sharp Color Stripes?

Have you ever spent a whole afternoon carefully kneading vibrant colors into dough, dreaming of the perfect rainbow babka or technicolor cinnamon rolls, only to pull a sad, brownish-grey swirl from the oven? It’s a uniquely specific kind of kitchen heartbreak. All that work, all that hope, dissolving into a muddy, indistinct mess. You followed the recipe, you used the best food coloring, so what went wrong?