Ingredients
Scale
- 1 tsp baking soda
- 2 tsp cream of tartar
- 1 tsp cornstarch (optional for storage)
Instructions
- Whisk all ingredients together until well combined.
- Store in a glass jar or an airtight container with a tight-fitting lid.
- Label and date your container before storing.
Notes
- Large Batch (Makes about 1 cup): 1/4 cup baking soda, 1/2 cup cream of tartar, 1/4 cup cornstarch (optional)
- Making baking powder in advance ensures you always have it on hand for frequent baking.
- Ingredient Notes: Baking soda is usually found in bulk in warehouse stores. Cream of tartar is in the spice aisle. Cornstarch or arrowroot is in the baking or gluten-free section.
- Additions: Arrowroot powder for grain-free storage; dried lemon zest for a citrus twist.
- Substitutions: Arrowroot can replace cornstarch 1:1. Starch may be omitted if using immediately.
- Freshness Test: Add 1/2 tsp baking powder to 1/4 cup warm water. If it bubbles immediately, it’s active. If not, make a fresh batch.
- Prep Time: 5 minutes
- Cook Time: 0 minutes
- Category: Homemade Staple
- Method: No-Cook
- Cuisine: American