Ermine Cooked Starch Buttercream

Batch Size:
Yield:

Filling

AmountIngredient
Unsalted Butter
Granulated Sugar
Water
Light Corn Syrup
Cornstarch
Lemon Extract
Citric Acid
Salt
Scaled ingredient total500 g

Prep Method 15

  1. 1.Reserve 1% of the total formula weight from the water allocation (approximately 4.07% of the formula water).
  2. 2.In a saucepan, whisk the granulated sugar and cornstarch together until evenly blended.
  3. 3.Gradually whisk in the remaining formula water and light corn syrup until smooth.
  4. 4.Cook over medium heat, whisking continuously.
  5. 5.Bring to a full boil, with bubbles breaking across the center. Continue boiling and whisking for 60 seconds.
  6. 6.Remove from the heat.
  7. 7.Dissolve the citric acid and fine salt in the reserved water.
  8. 8.Once the cooked base is no longer boiling but is still warm and fluid, stir in the citric acid and salt solution.
  9. 9.Transfer to a shallow container and press plastic wrap directly against the surface. Cool completely to approximately 20–22 °C (68–72 °F).
  10. 10.Bring the unsalted butter to approximately 18–20 °C (65–68 °F), so it is pliable and cool without being greasy.
  11. 11.Using the paddle attachment of a stand mixer, mix the butter on medium-low speed for 1–2 minutes until smooth.
  12. 12.Reduce the speed to low. Add the cooled cooked base gradually in small additions, allowing each addition to incorporate fully before adding more.
  13. 13.Stop the mixer and scrape the bowl periodically during incorporation.
  14. 14.Once the base is fully incorporated, add the lemon extract or bakery emulsion.
  15. 15.Mix on low to medium-low speed for 30–60 seconds, only until smooth and homogeneous.

U of M Equivalency

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Recipe Cost

There is not enough information to calculate cost. Please verify the below:
  • This recipe and all its sub-recipes must include Total Yield
  • All ingredients in this recipe and its sub-recipes must be defined
  • All ingredients in this recipe and its sub-recipes must have a purchase cost
  • All ingredients in this recipe and its sub-recipes must have the needed unit conversion to convert from the unit in the recipe to the purchase unit
  • If this recipe exists in multiple concepts or locations, there is a cost at each concept/location

Ingredient and sub-recipe costs used to calculate this recipe.

Ingredient / Sub-Recipe ( | )Cost
Unsalted Butter$1.2143
Purchase item nameGreat Value Sweet Cream Unsalted Butter, 16 oz, 4 Sticks
Purchase cost$3.06
Purchase unit16 ounce_mass
Date added2026-08-08
Item ID #10315054
Vendorwalmart
Granulated Sugar$0.2176
Purchase item name10 LB SUGAR
Purchase cost$6.58
Purchase unit10 pound
Date added2026-07-10
Item ID #980250647.0
Vendorsams_club
WaterThis ingredient is not yet set with a purchase cost and unit—
Light Corn Syrup$0.1133
Purchase item nameGreat Value Light Corn Syrup, 16 fl oz
Purchase cost$2.54
Purchase unit16 fluid_ounce_us
Date added2026-04-02
Item ID #10315278
Vendorwalmart
Cornstarch$0.0423
Purchase item nameGreat Value Corn Starch, 16 oz
Purchase cost$1.92
Purchase unit16 ounce_mass
Date added2026-03-08
Item ID #664106906
Vendorwalmart
Lemon ExtractThis ingredient is not yet set with a purchase cost and unit—
Citric AcidThis ingredient is not yet set with a purchase cost and unit—
Salt$0.0009
Purchase item nameGreat Value Iodized Salt, 26 oz
Purchase cost$0.67
Purchase unit26 ounce_mass
Date added2024-10-27
Item ID #10448316
Vendorwalmart
Total Yield500 g
Total Cost$1.5885
Cost Per G:$0.0032

Partial estimate; unpriced ingredients are excluded. 74% of ingredient weight is priced.

3 costing issues
  • Water: no active USD purchase price with a convertible package size
  • Lemon Extract: no active USD purchase price with a convertible package size
  • Citric Acid: no active USD purchase price with a convertible package size

Nutrition label

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Serving sizeDefine the amount represented by one serving.
Label requirements
  • Lemon Extract needs reviewed USDA or custom nutrition data, or must be explicitly excluded from the finished food.
  • Citric Acid needs reviewed USDA or custom nutrition data, or must be explicitly excluded from the finished food.
  • Enter an explicit serving size and unit.
Ingredients6 of 8 connected
Ingredient / RecipeUSDA IngredientYield after cookingNet Weight
Unsalted ButterButter, stick, unsalted
100.00%
180g
Granulated SugarSugars, granulated
100.00%
150g
Waterwater
100.00%
123g
Light Corn SyrupSyrups, corn, light
100.00%
30g
CornstarchCornstarch
100.00%
10g
Lemon ExtractAdd nutritional data
100.00%
3.5g
Citric AcidAdd nutritional data
100.00%
2.5g
SaltSalt, table
100.00%
1g

Draft calculation · 99% mapped. Scaled batch: 701 kcal. Nutrition and allergen analysis must be professionally verified before regulatory use.

Additional details