Scaling Recipes
Scale any recipe up or down by servings or pan size, with smart handling for eggs, leavening, and unit conversions.
How to Adjust Baking Time When You Change Pan Size
Shallower batter bakes faster; deeper batter bakes slower. A 9x13 pan cooks a layer cake in 25–35 min versus 30–35 min for two 9-inch rounds. Adjustment table inside.
How to Halve an Egg in a Recipe
Beat a whole egg and measure out 1.5 tablespoons — that's half a large egg (25 g). Full chart for fractional eggs with weights and tablespoon measures.
How to Scale a Recipe Up or Down
Multiply every ingredient by your scale factor (new servings ÷ original servings). Baking needs extra attention to leavening, eggs, and pan size — worked examples inside.
How to Scale Yeast and Salt in Bread Recipes
Scale yeast linearly up to 2x. At larger scales, reduce yeast by 10–15% and watch the dough, not the clock. Salt stays at 1.8–2% of flour weight at any scale.
Why Baking Recipes Don't Always Scale Perfectly
Leavening, eggs, pan area, and oven behavior all change non-linearly when you scale a baking recipe. Understand the exceptions so your doubled cake doesn't flop.