10 Tablespoons baking soda
5 Tablespoons powder sugar (or cornstarch)
5 Tablespoons citric acid
5 droppers full of fragrance oil or essential oil
2 Tablespoons almond oil (to little or too much can create problems)
Mix dry ingredients together in a large glass bowl. Gradually drizzle oils in and mix until evenly distributed. Spoon in to oven-proof molds or a metal ice cube tray. Press very, very hard. Bake for 2-3 hours at very low heat (no higher than 200 degrees F. Let cool on baking sheet before removing, as they are very fragile until cool. Cure for 2 weeks before using. Store in glass jars.