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Rainbow Sandwich Loaf

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  • Prep 3 hr 0 min
  • Total 3 hr 0 min
  • Servings 40
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A fun little treat for a back-to-school celebration! Turn your rainbow bread into a delicious sandwich with peanut butter, bananas, and rainbow marshmallows.
by: Michelle Palm
Updated May 6, 2021
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  • 4 cans (11 oz) refrigerated Pillsbury™ Original French Bread
  • Red, orange, yellow, green, blue, purple gel food coloring
  • Cooking spray
  • 4 x 4 x 18 pullman loaf pan (two regular 8 x 4 bread loaf pans)
  • A little flour for sprinkling


  • 1
    Unwrap the bread dough, and cut each into three equal lengths. You'll have 12 lengths total, 2 for each rainbow color (red, orange, yellow, green, blue, purple).
  • 2
    Spray a plate lightly with cooking spray and set aside.
  • 3
    Take two lengths of dough and add about 1/2 teaspoon of gel food color. It works best to smear it on the top of one length, place the other on top, and knead it in. Knead about 30 times, pushing the dough with the heel of one hand, and pulling it back, until the coloring is blended in. Note: the color won't be perfectly uniform ... there will be little flecks of white -- that is absolutely okay.
  • 4
    Place the colored dough on the sprayed plate and set aside.
  • 5
    Wash your hands thoroughly, and wipe the counter (to avoid dye transfer to the next color). Repeat with the remaining colors.
  • 6
    Sprinkle the countertop lightly with flour. Starting with the red dough, sprinkle a tiny bit of flour over the top, and roll out to a long rectangle, about 6 inches wide, 18 inches long and 3/4 of an inch thick. Set aside. Repeat with orange, and set on top of the red dough. Continue moving through the rainbow, with the yellow, green, blue and purple dough, until they are all stacked.
  • 7
    Pat the stack out a little, to bind the layers. Roll it up so it will fit nicely in your Pullman pan (or cut in half if you're using 2 regular loaf pans).
  • 8
    Spray a Pullman loaf pan lightly with cooking spray (or spray 2 standard loaf pans). Set the dough in the Pullman pan, and close the cover so its just a tiny bit open -- so you can barely see inside. If you're using regular loaf pans, wrap them with plastic wrap and a towel and set aside.
  • 9
    Preheat oven to 350°F.
  • 10
    Allow the dough to sit for about 30 minutes -- it won't really do a full rise, but will just get a tiny bit puffed, and we want to give it a tiny head start after all that kneading.
  • 11
    Bake the loaf for an hour to an hour and 15 minutes, until the top makes a tiny thump when tapped, the loaf is the tiniest bit brown, and a skewer inserted into the middle comes out clean. If you're using two regular loaf pans, my best guess is to start checking at 30 to 40 minutes.
  • 12
    Allow to cool in the pan for 10 minutes, then transfer to a rack to allow to cool fully before cutting.
  • 13
    Cut off all the crusts, until you have a square loaf. Then cut into thin dainty pieces, layer with your favorite sandwich toppings and have a rainbow-y good day!

Nutrition Information

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More About This Recipe

  • This incredibly awesome rainbow sandwich loaf starts easily with refrigerated bread dough! I love using the Pillsbury™ pre-made doughs. First of all, if it comes out of my oven, it’s homemade as far as I’m concerned. More importantly, the convenience factor gives me time to play! And what’s more fun for back-to-school than a tiny square loaf of rainbow bread? The Pullman pan is optional, but I recently purchased one, and was very excited about it. However, although the Pullman did a great job here, I’ll use it primarily for homemade yeast breads, as I couldn’t get the balance right between too full (doughy centers), or not full enough. I found that with four cans of Pillsbury™ French bread dough, you’ll get a nice, densely textured loaf (like those little square loaves at the grocery) that squares off pretty nicely, and it bakes all the way through. Cut the square loaf into dainty thin pieces, about ¼ inch thick, layer with your favorite sandwich toppings. And then, have a rainbow-y good day! How could you not? Oh, yes, toppings!! My favorite rainbow sandwich topping? Why it’s a little something I call the Fluffernutter Royale – peanut butter, banana slices … and rainbow marshmallows. Yum! Have a rainbow-y day all!
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