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Pretty in Pink” 3D Christmas Tree Cake


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  • Author: Susan Gravatt
  • Total Time: 3 hours
  • Yield: 1 3D Christmas Tree Cake 1x

Ingredients

Scale

Coconut Cake Layers

Dry Ingredients

  • 6 cups (675 g) all-purpose flour
  • 3¾ teaspoons baking powder
  • 1¼ teaspoons baking soda
  • 1 tablespoon kosher salt

Wet Ingredients:

  • 3 cups (675 g) granulated sugar
  • 150 g virgin coconut oil
  • 1 ¼ cups (282 g) unsalted butter, room temperature
  • 2 ½ tablespoons vanilla extract
  • 5 teaspoons coconut extract
  • 7 large eggs, room temperature
  • 2 cups (450 g) canned coconut milk, well stirred
  • About 1/3 cup + 2 Tbsp (100 g) full-fat Greek yogurt or sour cream, at room temperature 

Raspberry Compote Filling

  • 2 cups (240 g) raspberries (fresh or frozen)
  • 1½ teaspoon lemon juice
  • 1 tbsp sugar

Optional: 1 teaspoon cornstarch mixed with 1 tablespoon cold water (for thickening).

Raspberry Vanilla Buttercream

  • 2 cups (452 g) unsalted butter, room temperature
  • 113 g vegetable shortening
  • 2200 g powdered sugar (about 20 cups)
  • 5 tbsp meringue powder
  • 1½ cups (390 g) heavy cream, adjusted to consistency
  • 105 g freeze-dried raspberry powder
  • 4 tbsp vanilla extract
  • Salt to taste (1-2 tablespoons)
  • 34 tbsp lemon or lime juice (or white vinegar) to cut sweetness; add to preference.

Isomalt Star Topper

  • 240 g semi-pre-cooked isomalt crystals
  • Yellow gel food coloring (tiny toothpick dot)
  • Edible gold leaf flakes
  • Wooden lollipop stick or kebab skewer

Decorations

  • Round pearlescent white sprinkles (ornaments)
  • Round pearlescent gold sprinkles (ornaments)
  • Edible shimmer dust
  • Shredded/desiccated coconut

Instructions

Coconut Cake

  1. Preheat oven to 350°F (177°C).
  2. Cream butter, coconut oil, sugar, vanilla, and coconut extract with paddle on medium 5 minutes; scrape halfway.
  3. Add 7 eggs, one at a time, mixing well between additions; mix ~3 minutes total until smooth and glossy; scrape as needed.
  4. In a separate bowl, whisk flour, baking powder, baking soda, salt.
  5. Add half the dry + all coconut milk (mix 30 seconds; scrape). Add remaining dry + Greek yogurt or sour cream. Mix just to combine — do not overmix.
  6. Line/grease pans: 9", 8", 7", 6", 5", and three 4" rounds.
  7. Divide batter by weights and bake to the time guide. Quick cool: 10 minutes in pan → pre-chilled greased racks (fan) → freezer 15–20 minutes.

Raspberry Compote Filling

  1. Combine raspberries, lemon juice, sugar in a small saucepan; cook over medium, stirring often, until berries break down (~10 minutes). For thicker filling, stir in cornstarch slurry, simmer 1–2 minutes. Strain for seedless, if desired. Cool completely.

Raspberry Vanilla Buttercream

  1. Beat butter + shortening smooth.
  2. Add powdered sugar, salt, heavy cream, vanilla in batches; mix medium-high 5 minutes.
  3. Taste; add lemon/lime (or white vinegar) to cut sweetness; adjust cream and sugar as needed.
  4. Remove ~60% plain frosting; tint remaining in bowl with raspberry powder. Pop air bubbles.
  5. Fill 4–5 piping bags (2D, 1M, Ateco 829/869/809, etc.); do not overfill.

Isomalt Star

  1. Lightly spray star cutters; set on silicone mat.
  2. Melt semi-pre-cooked isomalt over low–medium (280–290°F / 138–143°C); no water. Cool slightly to ~275–280°F; tint with a tiny dot of yellow gel
  3. Pour liquid into cutters and add gold flakes. Briefly torch to pop bubbles (optional).
  4. Cool 10–15 minutes; flip and lightly torch back center until tacky.
  5. Insert stick and hold to set.

Assembly & Decoration

  1. Prep cake circle with a dab of buttercream (glue).
  2. Stack cooled cake layers in order: 9" → 8" → 7" → 6" → 5" → 4" → 4" (cut to 3") → 4" (cut to 2"), using ~¼" buttercream (and raspberry filling) between layers.
  3. Carve and taper top edges of 3" and 2" tiers.
  4. Insert a central 12" dowel (add two side dowels if needed).
  5. Pipe a textured base coat; then decorate with pink/white swirls, add sprinkle ornaments and edible glitter; finish with the star.

Notes

  • Disclaimer: Nutritional information is an estimate based on standard ingredient values and preparation. Exact values may vary depending on specific brands, ingredients, or substitutions used. This data should not be considered a substitute for professional dietary advice.
  • This cake is a hefty one - you could easily get 30 servings out of this!
  • Prep Time: 50 minutes
  • Decorating & Assembly: 90 minutes
  • Cook Time: 40 minutes
  • Category: Dessert

Nutrition

  • Serving Size: 1 slice
  • Calories: 561.43 kcal
  • Sugar: 54.86 g
  • Sodium: 175.71 mg
  • Fat: 31.71 g
  • Saturated Fat: 17.14 g
  • Unsaturated Fat: 12.0 g
  • Trans Fat: 0.34 g
  • Carbohydrates: 66.86 g
  • Fiber: 1.2 g
  • Protein: 3.26 g
  • Cholesterol: 46.29 mg