Both my kids love bubble baths, so today we decided to mix up the bubbly fun with a homemade bath bomb! You can make this concoction entirely from ingredients found in your kitchen; look for citric acid in the baking aisle.
First, Travis helped measure out and stir together 2 and 1/2 teaspoons citric acid, 2 and 1/2 teaspoons baking soda, and 1 teaspoon cornstarch.
Add about 2 drops of food coloring (we used green!), followed by 1 and 1/2 teaspoons canola oil; the mixture is still crumbly at this point.
Spoon into a small paper cup, then press firmly with the back of a spoon to pack down. Let dry for at least 8 hours.
At bath time, tear away the paper cup. Toss in the tub and watch it fizz! Truth be told, the big reveal of the moment was a little less exciting than Travis had hoped for, but it still made for a neat bubbly reaction.