This revision preserves Heather’s chosen architecture: blended sugar, oil, egg whites, acidic clabber or buttermilk, lemon juice, freeze-dried berry powder, baking powder without baking soda, and berry ermine frosting. It is designed for approximately 5,100 feet elevation. The original complete formula is unavailable, so the quantities and consolidated method below are a practical reconstruction rather than a family-tested canonical formula.
Ingredients
One two-layer 8-inch cake, approximately 12 servingsCheck off each item as you go.
Method
Prepare the pans
Heat the oven to 340°F. Grease two 8-inch round cake pans and line their bottoms with parchment.
Make the berry sugar
Blend the cake sugar and freeze-dried berries together until the berries are finely powdered and evenly dispersed.
Mix the batter
Whisk the berry sugar with the cake flour, baking powder, and salt. In another bowl, combine the egg whites, oil, 1 1/4 cups thinned clabber or buttermilk, lemon juice, and vanilla. Fold the wet mixture into the dry ingredients only until smooth.
Correct the consistency
Let the batter fall from a spatula. It should form a thick ribbon that sinks back within a few seconds. If it stands in peaks, gently fold in more thinned clabber or buttermilk 2 tablespoons at a time, up to 1/2 cup, then bake promptly.
Bake and cool
Divide the batter between the pans and smooth the tops. Bake until the centers spring back and a tester has no wet batter, beginning to check at 25 minutes. Cool briefly in the pans, then turn out onto racks and cool completely.
Cook the frosting base
Whisk the frosting flour, milk, sugar, and salt in a saucepan. Cook over medium heat while whisking continuously until very thick and smooth. Transfer to a shallow container, cover directly on the surface, and cool completely to cool room temperature.
Whip the frosting
Beat the butter until pale and light. Add the cooked base gradually while beating, then whip until smooth and cloudlike. Beat in the sifted berry powder and vanilla.
Prepare cold layers
If the layers were frozen, thaw them while still wrapped. Unwrap only after the surfaces are dry and the cakes are cold and firm but no longer frozen solid.
Frost and serve
Apply a thin crumb coat, then finish frosting the cake. Keep it cool. If refrigerated overnight, bring it toward cool room temperature for about two hours before cutting.
Safety & handling
- Do not frost a fully frozen cake: surface condensation can interfere with adhesion and may become trapped beneath the frosting as the cake thaws.
- Keep the milk-and-butter frosting refrigerated for extended storage and avoid leaving the finished cake in a warm room for prolonged periods.
- If homemade clabber or raw dairy is used, its microbiological safety must be assessed separately; this recipe and the family record do not establish that it is safe.
Insider tips
- Freeze-dried berry powder carries far more pigment than fresh berries without adding water, but it also absorbs substantial liquid.
- Grinding the berries with the sugar helps pulverize them and prevents concentrated pink freckles in the batter.
- Expect a dusty-rose baked crumb rather than bubblegum pink; heat inevitably reduces some berry pigment.
- Matched temperatures are essential for ermine frosting: warm paste may loosen the emulsion, while cold paste or butter may create curds.
- Ermine frosting does not crust and softens in a warm room.
- A cold, firm cake sheds fewer crumbs than a fully room-temperature cake, but the frosting itself should remain at the room temperature at which it was whipped.
- If frosting stiffens during application, warm an offset spatula in hot water, wipe it completely dry, and use the warm metal to smooth the surface.
- Do not reuse sifted raspberry seeds as sprinkles; their hard texture remains unpleasant even after grinding.
- For natural berry sprinkles, pipe thin lines of stiff berry-tinted icing onto parchment, dry them undisturbed for one or two days, then snap them into short lengths. Apply only when fully dry to limit color bleeding.
Family notes
- Gia requested a pink cake for her third birthday.
- Heather wanted an exceptional oil-based cake and already preferred the blended-sugar technique used in her successful chocolate cake.
- The berry ermine frosting was made and reported to be perfect.
- Heather’s batter was thicker than expected; freeze-dried berry powder and thick clabber were identified as the likely causes.
- Heather noticed that raspberry seeds stuck behind the teeth and considered, then rejected, using them as sprinkles.
- The cake was developed for approximately 5,100 feet elevation.
- The desired frosting qualities were excellent texture and taste, similar to the flour-milk-sugar frosting previously used on a chocolate cake.
Background & original notes
This revision preserves Heather’s chosen architecture: blended sugar, oil, egg whites, acidic clabber or buttermilk, lemon juice, freeze-dried berry powder, baking powder without baking soda, and berry ermine frosting. It is designed for approximately 5,100 feet elevation. The original complete formula is unavailable, so the quantities and consolidated method below are a practical reconstruction rather than a family-tested canonical formula.
Cake: Heat the oven to 340°F. Grease and line two 8-inch round pans. Blend the granulated sugar with the freeze-dried berries until finely powdered. Whisk that mixture with the flour, baking powder, and salt. Separately combine the egg whites, oil, thinned clabber or buttermilk, lemon juice, and vanilla. Fold wet into dry just until smooth. The batter should fall from a spatula in a thick ribbon and settle back within a few seconds. If it holds peaks, fold in additional thinned clabber or buttermilk 2 tablespoons at a time, using as few strokes as possible. Divide between the pans and bake promptly, beginning to check at 25 minutes. Cool briefly in the pans, then turn out and cool completely.
Frosting: Whisk the flour, milk, granulated sugar, and salt in a saucepan. Cook over medium heat, whisking continuously, until very thick and smooth. Transfer to a shallow container, cover directly on the surface, and cool to the same cool-room temperature as the butter. Beat the butter until light, then add the cooked paste gradually and whip until cloudlike. Beat in the sifted berry powder and vanilla. Both butter and paste must be at matching temperatures: warm paste can make the frosting loose, while cold paste or butter can make it look curdled.
Assembly: Thaw frozen cake layers while still wrapped so condensation collects on the wrapping. Unwrap only when the surfaces are dry and the layers are cold and firm rather than frozen solid. Apply a crumb coat, chill briefly if needed, then finish frosting. Serve at cool room temperature; after overnight refrigeration, allow roughly two hours before cutting.
Sources & what was completed
Record provenanceWilliams family historical source + clearly separated usability completion
Completed for usability- The source preserved the design choices, a 45 g berry-powder reference, three sticks of frosting butter, troubleshooting guidance, sensory preferences, and the successful frosting outcome, but the original recipe cards were unavailable.
- Cake and frosting quantities, baking duration, and the unified step sequence were reconstructed as an ordinary usability completion from those surviving details and standard cake and ermine-frosting proportions.
- The reconstructed cake formula has not been represented as family-tested. Adjustments should be recorded as a new revision after an actual bake.
- The documented batter correction—adding thinned clabber or buttermilk 2 tablespoons at a time, potentially up to 1/2 cup—is preserved from the family interaction rather than presented as proof that the reconstructed base quantities are final.
Recorded by Williams family record + completion on Sep 26, 2026.