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a green and white number 1 candles on top of a healthy smash cake with rainbow sprinkles

Dairy Free Soy Free MSPI Friendly Birthday Cake

Whether your MSPI baby is celebrating a birthday or if you're just looking for a healthier smash cake option, this recipe is for you. This cake is sugar-free, full of whole grains and whole wheat, and packed with fruit. With an optional sweet, dairy free frosting or a natural whole food option, you'll feel good giving your baby this birthday cake recipe. 

Course Desserts
Cuisine American, Baked Goods, party food
Keyword dairy free, MSPI, smash cake
Prep Time 5 minutes
Cook Time 30 minutes
Total Time 35 minutes
Servings 1 cake
Calories 1515 kcal
Author Morgan


For the cake

  • 1/2 cup whole wheat flour
  • 1/4 cup rolled oats
  • 1/4 tsp baking soda
  • 1/2 tsp baking powder
  • tiny pinch of salt
  • 1 1/2 ripe bananas
  • 1 egg
  • 2 TBS melted coconut oil*
  • 3 TBS water

For the Frosting:

  • 1 cup powdered sugar
  • 3-4 TBS shortening we used Spectrum
  • 1 tsp milk alternative of choice
  • 1/2 tsp vanilla


To make the cake

  1. Preheat oven to 350.
  2. In a bowl, mash the bananas well and mix in the melted coconut oil. Whisk in egg and water and set aside.
  3. Put dry ingredients in a bowl and stir together to get rid of any clumps.
  4. Pour in wet mixture and mix until all dry spots are gone.
  5. Grease your baking container - about 3 inches in diameter and pour in the batter. Bake 25-30 minutes or until a toothpick placed in the middle comes out clean.
  6. Allow the cake to cool, and then even out the top by slicing off the bulge and cut through the middle to make 2 layers.
  7. Place a layer of frosting in the middle as well as chopped strawberries if desired.
  8. Put the layers together, and spread a thin layer of frosting all over the cake, called a crumb coat.
  9. Place in the fridge to harden, and then top with the rest of the frosting on the cake and even out.
  10. If desired, top with MSPI friendly sprinkles, (nonpareils work) a candle and watch your little one enjoy!

To make the frosting:

  1. Cream the shortening in a bowl until light and creamy. Whip in the sugar until light and fully incorporated before adding the other ingredients. If too thin, add more sugar as needed.

Recipe Notes

You can use melted shortening or oil as needed. I used a large microwave-safe mug maybe 3 inches in diameter, 4 inches deep. Not all dishware is oven safe though. If you want to skip all sugar, skip the frosting and make a coconut cream whipped cream.

Nutrition Facts
Dairy Free Soy Free MSPI Friendly Birthday Cake
Amount Per Serving
Calories 1515 Calories from Fat 711
% Daily Value*
Fat 79g122%
Saturated Fat 38g238%
Trans Fat 0.05g
Polyunsaturated Fat 8.2g
Monounsaturated Fat 26g
Cholesterol 619mg206%
Sodium 110mg5%
Potassium 1149mg33%
Carbohydrates 200g67%
Fiber 14.6g61%
Sugar 120g133%
Protein 23g46%
Vitamin A 1300IU26%
Vitamin C 17.3mg21%
Calcium 90mg9%
Iron 6.7mg37%
* Percent Daily Values are based on a 2000 calorie diet.