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Fondant Cake Mistakes You Must Avoid Now

Fondant cake

yommyrecipes
Avoid cake disasters with these expert tips! Discover the Fondant Cake Mistakes You Must Avoid Now and learn how to fix them for a flawless finish.
Prep Time 45 minutes
Cook Time 35 minutes
Total Time 1 hour 20 minutes
Course Breakfast, Dessert
Cuisine International
Servings 12 slices
Calories 420 kcal

Ingredients
  

For the Cake Base

  • A sturdy cake is essential for supporting fondant. Opt for a dense cake that holds its shape well. Some great choices include:
  • Vanilla sponge cake – A classic firm base that pairs well with fondant.
  • Chocolate cake – Rich and stable providing a great foundation.
  • Butter cake – Dense enough to support fondant without crumbling.
  • Carrot or red velvet cake – If using these apply a firm crumb coat for extra stability.

For the Buttercream Crumb Coat

  • Before applying fondant a smooth crumb coat helps it adhere properly and prevents bulging. You’ll need:
  • 1 cup unsalted butter room temperature
  • 3 cups powdered sugar sifted
  • 2-3 tablespoons heavy cream adjust for desired consistency
  • 1 teaspoon vanilla extract or your preferred flavoring
  • Tip: A thin even layer of buttercream provides a tacky surface for the fondant to stick to, preventing air pockets.

For the Fondant

  • If making homemade fondant these ingredients will help achieve the perfect texture:
  • 16 oz mini marshmallows – Melted to form the base.
  • 4 cups powdered sugar – Adds structure and sweetness.
  • 2 tablespoons water – Helps melt the marshmallows smoothly.
  • 1 teaspoon vanilla extract – Enhances flavor.
  • Vegetable shortening – Prevents drying and cracking while kneading.
  • Cornstarch or powdered sugar – For dusting while rolling out fondant.

Optional Additions:

  • Tylose powder – Strengthens fondant for sculpting decorations.
  • Gel food coloring – For customizing colors without altering fondant texture.
  • Edible shimmer dust – Adds a professional finishing touch.

Instructions
 

Step 1: Prepare and Level the Cake

  • A solid foundation is key to preventing fondant cracks or bulging. Here’s how to prep your cake:
  • Cool the cake completely before handling—warm cakes can cause the fondant to melt or slip.
  • Trim and level the top of each layer using a serrated knife or cake leveler to create an even surface.
  • Apply simple syrup (optional) to keep the cake moist without making it soggy.
  • Tip: A dense cake (like butter cake or sponge cake) holds its shape better under fondant than a light, airy cake.

Step 2: Apply the Crumb Coat

  • A smooth buttercream base prevents fondant from slipping and helps it adhere properly.
  • Spread a thin layer of buttercream over the entire cake using an offset spatula.
  • Chill the cake for 30 minutes to let the crumb coat firm up—this prevents the fondant from picking up crumbs.
  • Apply a second coat if needed to create an even, smooth surface.
  • Tip: The smoother your buttercream base, the better your fondant will look.

Step 3: Roll Out the Fondant

  • The right rolling technique makes all the difference in achieving a wrinkle-free fondant finish.
  • Dust your work surface lightly with cornstarch or powdered sugar to prevent sticking.
  • Knead the fondant until it’s soft and pliable—this prevents cracks and air bubbles.
  • Roll out the fondant into a circle about 1/8 inch thick and at least 2 inches wider than your cake’s diameter.
  • Tip: Use a fondant rolling pin to ensure an even thickness across the surface.

Step 4: Cover the Cake with Fondant

  • This is the trickiest part, but with the right approach, you’ll get a smooth, seamless finish.
  • Carefully lift the rolled-out fondant using a rolling pin or your hands.
  • Drape it gently over the cake, ensuring it covers the entire surface.
  • Use a fondant smoother to press the top and sides, eliminating any air bubbles.
  • Work your way down the sides, gently pulling and smoothing to prevent wrinkles.
  • Trim the excess fondant at the base with a sharp knife.
  • Tip: If air bubbles appear, use a small pin to gently release the air, then smooth over the spot.

Step 5: Add Decorative Touches

  • Now for the fun part—decorating your masterpiece!
  • Use embossing tools or textured mats to create unique patterns.
  • Apply gel food coloring for custom designs.
  • Dust with edible shimmer powder for a polished, professional look.
  • Create fondant cutouts or figures to personalize the cake.

Step 6: Store and Serve

  • To keep your cake fresh and looking perfect:
  • Store at room temperature in a cool, dry place. Refrigeration can cause condensation, making the fondant sticky.
  • Use a cake box when transporting to protect the fondant finish.
  • Slice with a sharp knife, wiping between cuts for clean edges.

Notes

Nutrition Information (Per Serving):
  • Calories: 420 kcal
  • Total Fat: 12g
  • Saturated Fat: 7g
  • Cholesterol: 55mg
  • Sodium: 180mg
  • Carbohydrates: 72g
  • Sugars: 55g
  • Protein: 4g
  • Fiber: 1g