Doubling is the most common scaling task. You might double a recipe when hosting dinner guests, preparing for a potluck, or simply making extra to freeze for later.
1 cup becomes 2 cups when doubling
Common Ingredients Doubled
Here's a quick reference for common measurements when doubled:
Common measurements and their doubled equivalents
Pitfalls to Avoid
Not everything scales linearly. Be cautious with: spices (start with 1.5× and adjust to taste), leavening agents (baking soda/powder may need only 1.75×), and cooking times (may need slight adjustment).
Important: Always taste as you go when doubling—spices don't always scale linearly!
Step-by-Step Example
Let's double a simple cookie recipe: Original (12 cookies) → Doubled (24 cookies)