This makes 12 large bath bombs. See molds used in recipes below.
2 cups baking soda (1 box)
1 cup of citric acid
1 cup of Epsom salt
A little less than 1 tsp of water
3 tsp olive oil
1-2 tsp of essential oils if you desire (I used 1.5 tsp lavender. I would be weary of minty oils - wouldn't they sting...certain places?)
A few drops of food coloring if you desire (You can use a natural dye like beet juice)
1 small bowl & 1 large bowl
1 measuring cup, 1 tsp measuring spoon
1 large fork (or wisk to mix the ingredients together), 1 spoon
Bath bomb molds. You can really use anything with a nice shape (I used this one and this one)
1) Mix the 2 cups baking soda, 1 cup citric acid, and 1 cup Epsom salt together in the large bowl. Next, mix the 3 tsp olive oil, 1 tsp water, and the optional 1-2 tsp of essential oil and few drops of food coloring (may need to tweak this measurement based on how strong you want the scent) together in the small bowl.
2) Then, slowly add the wet ingredients to the dry ingredients a spoonful at a time. This part was easier to do with two people. As soon as the liquid mixture touches the dry mixture, it will begin to fizz. You don't want it to fizz too much because then your bath fizzy will have nothing to show for later. To prevent this, quickly mix in the wet ingredients as soon as they touch the dry.
3) When you have combined the two mixtures of wet and dry ingredients, try to create a mold that will stay together in your hand when pressed. If this does not happen, add more wet/dry accordingly. Your finished mixture product should look pretty crumbly. This is normal. *If you add food coloring, your mix may need more dry ingredients. -If your recipe needs more dry: add baking soda -If your recipe needs more wet: add water, only a few drops at a time - you don't want to overdo the moisture!
4) Add a few drops of oil to create a non-stick barrier in your molds. Then add your mixture to them, packing down with a spoon. This was the key - pack it! Then let it sit about 1 - 2 hours depending on the size of your bath fizzies. We let ours sit probably 25 minutes and some of the corners were fragile and moldable.
5) Take out the bath fizzies/bath bombs. The silicone makes it SO easy to remove. Press lightly on the bottom part and push up - out they pop. I would place it on a paper towel or washcloth to help absorb moisture for a while before storing. I I threw mine in an airtight tupperware right away and they stuck together and didn't look as pretty for gift-giving. 6) I have read if you keep these fizzies in a dry place in an airtight container they can last up to 6 months but I have yet to try this out.
Be careful when using these bath fizzies because it will sting open cuts!