Comparing Fat Content
The main difference between these dairy products is fat percentage. British double cream weighs in at approximately 48% butterfat. In contrast, the highest-fat cream generally available in United States supermarkets is heavy cream or heavy whipping cream, which typically ranges from 36% to 40% fat. Occasionally, local dairies may produce a cream with up to 42% fat, but it still falls short of the British standard.
When to Use Heavy Cream
If you are making a dessert like an Irish Chocolate Cake, substituting American heavy cream is usually safe. British recipes call for double cream because it is the standard local ingredient, not necessarily because the recipe relies on that exact fat percentage for structural integrity. Using heavy whipping cream adds plenty of richness, and your cake will almost certainly turn out well without the extra fat.
How to Make a High-Fat Substitute
If you want to mimic the texture and fat content of double cream more closely, you can use a homemade method involving crème fraîche. This process removes water content to boost the fat percentage to around 48% or 50%.
- Ingredients: Combine 2 cups of heavy cream with 2 tablespoons of buttermilk or sour cream.
- Heat and Rest: Warm the mixture gently to body temperature in a pan. Pour it into a non-reactive container (such as stainless steel, glass, or ceramic) and let it sit in a warm spot for about 24 hours until it thickens.
- Strain: Line a strainer with a triple thickness of cheesecloth or a clean, wet cloth napkin. Fill it with the thickened cream mixture and suspend it over a bowl in the refrigerator.
- Drain: Allow the whey to drain out. By the time about a quarter cup of liquid has released from your 2 cups of mixture, the remaining solids will have a higher fat content comparable to double cream.
Flavor Considerations
It is important to note that this DIY substitute will taste slightly acidic, similar to crème fraîche or sour cream, due to the culturing process. Before using this in a sweet recipe, consider whether the tangy flavor profile will complement your dish.
FAQ
Is American heavy cream the same as double cream?
No. British double cream has a fat content of about 48%, whereas American heavy cream typically contains between 36% and 40% fat.
Can I use heavy whipping cream instead of double cream in a cake?
Yes. For most cakes and baked goods, heavy whipping cream is a perfectly acceptable substitute and will not ruin the recipe.
How do I make a double cream substitute at home?
You can simulate double cream by mixing heavy cream with a little buttermilk, letting it thicken for 24 hours, and then straining out the excess liquid to increase the fat concentration.