Updated: Jul 17, 2020
1 cup baking soda
1/2 cup cornstarch
1/4 cup Epsom salt or cane sugar
1/2 cup citric acid
Food coloring (optional)
essential oil or baking extract (optional)
Water, up to 1.5 T
Mix the baking soda, cornstarch, Epsom salt/sugar, and citric acid in a large bowl. The measurements are simple, so it’s a great way to get your kids to practice measuring ingredients.
Add a few drops of food coloring and mix. (We used gel food coloring, and it stayed fairly clumpy until the end, so don’t worry if that happens to you.) Next, if you want scented bath bombs, add some drops of essential oils, or you can use 1/2 tsp food extract, like peppermint, vanilla, or lemon...whatever you have at home. We used lemon extract and it worked great. Add just enough water so that it will form a clump that holds together when you squeeze it.
Scoop up the mixture and press firmly into your chosen molds. Some things that work well are ice cube trays, silicone muffin liners, or even cookie cutters on a baking pan. You can also hide a little toy inside if you're feeling really inspired. The secret is to press the mixture together firmly so that it sticks together.
Let the bombs dry overnight and then gently pop them out of the molds. Store in an airtight container until bathtime or wrap them up and give them as gifts!
Please be sure to let me know how this project worked for you, and share photos/videos @little.sunshine.mom!!