Ammonium Carbonate (Bakers Ammonia)

Revive vintage recipes with a pantry staple that’s stood the test of time. Baker’s Ammonia, also known as ammonium carbonate or hartshorn, is the go-to leavening agent for ultra-crisp cookies and crackers. If your favorite holiday treats call for that signature snap, this is the ingredient that gets you there—no bitter aftertaste, just pure crunch perfection.

This 2.7 oz bottle of Baker’s Ammonia releases carbon dioxide when heated, creating light, crisp textures in thin baked goods. Not suitable for cakes or large-volume items, as the ammonia gas requires full exposure to air to dissipate. A faint odor may occur during baking but will not linger in the final result. For best performance, store tightly sealed to prevent evaporation.

Features:

• Traditional leavening for extra-crisp cookies and crackers
• Preferred in many European and old-fashioned recipes
• No off-flavors left behind like with baking soda or powder
• Gluten free and packaged by weight, not volume