No More Pie, Serve Rhubarb Cake

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rhubarb cake in hand and in the ground

My Rhubarb Jungle

Gardening may not be your hobby. However, at our house we seem to have endless rhubarb.  This stuff is hearty and gigantic.  Truly you might think we were growing pumpkins if it were the season. So what is a lady to do with endless stalks of vibrant rhubarb? Bake cakes of course.  Rhubarb cake is the perfect blend of sweet and sour.

Rhubarb is not so traditional in cakes.  There is the ultimate pairing of strawberries and rhubarb.  A plant so hearty that plural is not necessary.  As if you could eat more than one rhubarb.  Rhubarbs is just not happening.  So, when faced with an epidemic of sour vegetables, we decide to chop them down.  Since pie is already perfected, we chose cake. I doubt anyone has offered you a slice of rhubarb cake before.  rhubarb cake by lush rhubarb leaves

Rhubarb Is Pretty In Pink

After all rhubarb is healthy and vibrant pink.  There is nothing more impressive than a slab of bright pink cake. This is the stuff you wanted at your princess tea party because it is perfectly pink.  As well as sounding sophisticated on account of the rhubarb all in delicate cake form. 

There is a tiny cheat though adding some pink food coloring.  Whenever you are using natural plant based colors, they always lose some vibrancy from mixing.  It’s hard to win against bright yellow egg yolks plus the bleached white of cake flour. Leaving out the food coloring and this will be a soft pastel pink beauty. 

I nearly paired this with a cream cheese frosting.  However, I chose a vanilla Italian buttercream instead.  There is nothing more pleasing than a fluffy layer of buttercream. The sprinkles were a last minute topping.  Obviously, there is never a wrong time for sprinkles on frosting. 

Find More Easy Cakes:

Rhubarb Slab Cake
The perfect rhubarb slab cake. Perfectly pink to win over any strawberry rhubarb pie lover.
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Rhubarb Puree
  1. 1 large stalk rhubarb, diced
  2. 1/8 cup sugar
  3. 2 Tbsp water
  4. squeeze of lemon juice
Rhubarb Slab Cake
  1. 2 3/4 cup cake flour
  2. 2 1/2 tsp baking powder
  3. 1 tsp salt
  4. 1/2 cup butter
  5. 1/2 cup oil
  6. 1 3/4 cup granulated sugar
  7. 3/4 cup milk
  8. 3 large eggs
  9. 2 tsp vanilla
  10. 1/2 cup roasted rhubarb puree
  11. 2 drops red/5 drops pink food coloring if desired
Rhubarb Puree
  1. Preheat oven to 350°F
  2. Spread rhubarb in baking pan
  3. Sprinkle with sugar
  4. Roast 20 minutes or until light caramel color
  5. Puree roasted rhubarb with lemon and water if needed
Rhubarb Slab Cake
  1. Preheat oven to 350°F and parchment line a 13x9 baking pan
  2. In a medium bowl, combine dry ingredients and set aside.
  3. In a large bowl, cream butter and sugar.
  4. In a small bowl combine milk, eggs, vanilla extract, and 1/2 cup rhubarb puree. Whisk together.
  5. Add dry ingredients to butter and mix.
  6. Add wet ingredients to butter mixture. Whisk until combined.
  7. Pour into pan and bake 25 minutes.
  8. Cool to room temperature before frosting.
  1. I did not parchment line my pan since I served my cake from the pan. Instead, I used non-stick baking spray.
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