No, not all components of a complex recipe can be scaled equally. While some ingredients can be doubled proportionally, others, like baking time or frosting, may require adjustments based on the recipe's specific characteristics and assembly.
Scaling recipes involves adjusting ingredient quantities to yield a different number of servings or a different size of the final product. While a simple multiplication of all ingredients might seem like the obvious solution, it's rarely that straightforward, especially with complex recipes like pies or layered cakes.Consider a pie: Doubling the filling might require a slightly smaller increase in the crust recipe than a full doubling. This is because the ratio of crust to filling can influence the overall texture and structural integrity of the pie. Furthermore, doubling the filling might significantly increase the pie's depth, requiring a longer baking time, but not necessarily double the original time. The increased mass takes longer to heat through, but the surface might brown too quickly if the temperature isn't adjusted.Similarly, with a layered cake, doubling the batter doesn't automatically mean doubling the frosting. The amount of frosting needed depends on the cake's surface area and the desired thickness of the frosting layer. If you're making a taller cake with the doubled batter, the surface area might not double, meaning you might need less than double the frosting. Also, the baking time will definitely need adjustment. Doubling the batter will create thicker cake layers, requiring a longer baking time at a slightly lower temperature to ensure the center cooks through without burning the edges.Sauces are another example where direct scaling might not work. Doubling a sauce recipe might concentrate flavors more intensely, requiring adjustments to seasonings or liquid content to maintain the desired balance.
When scaling a recipe, start by adjusting the major ingredients proportionally, then taste and adjust seasonings, liquids, and baking times incrementally. It's always better to slightly under-scale and add more than to over-scale and have to discard ingredients.