Tomatillos
10.0best for bakingAdd lime juice for tanginess
Baking with tomatoes turns 94% water flesh into a structural variable: their pectin softens above 180°F, their acidity (pH 4.3-4.5) tightens gluten, and their sugar (about 3g per 100g) browns at the crust. Swap candidates must respect that water budget or the crumb collapses; concentrated pastes count for double, fresh berries count for half. This page ranks substitutes first by water-load match, then by acid contribution to leavening (baking-soda reactions need pH below 5), and finally by browning sugar.
Add lime juice for tanginess
Tomatillos sub 1:1 cup in baked savory loaves and focaccia: their pH 3.8 reacts harder with baking soda than tomato's pH 4.4, so cut soda by about 15% or batter rises too fast and collapses. Add 1 tsp lime juice per cup to lock in the bright tomatillo note through baking heat.
Smoother and more concentrated; use half the amount and thin with water if needed
Use 0.5:1 cup in baked savory items; this concentrated sauce carries 14-18% solids and reaches Maillard browning faster than fresh tomato. Thin with 2-3 tbsp water per 1/2 cup if batter looks dry, and bake 5 minutes longer at 350°F to compensate for denser water-retention.
Use 1/2 cup juice per cup diced tomatoes in sauces and soups; reduce other liquid
Tomato juice subs 0.5:1 cup in savory quick breads and focaccia: it's about 95% water with 5% solids, so reduce other liquid by an equal amount. Acidity (pH 4.3) still activates baking soda, but expect a finer crumb and roughly 8% less browning at the crust.
Fresh sliced berries work in caprese-style salads with basil and mozzarella
Strawberries swap 1:1 cup only in dessert-leaning bakes — galettes, cornbread with berry-tomato jam. Their 7% sugar versus tomato's 3% pushes browning earlier; drop oven 15°F to 335°F or crusts darken before centers set. Acidity (pH 3.5) still leavens with baking soda.
Pureed for sauce, adds body and sweetness
Pumpkin puree subs 1:1 cup with caveats: it carries 90% water but lacks tomato's pH 4.4 acidity, so baking-soda recipes will under-rise. Add 1/2 tsp cream of tartar per cup and reduce sugar by 1 tbsp since pumpkin contributes its own sweetness around 6% Brix.