Not so secret mix.
Dr Hubble uses different mixtures for different tricks but here is a recipe that will work well for kids at home and at school.
4 litres of warm water
1 cup of Fairy dishwashing liquid – or purple Palmolive if you can’t find Fairy
2 tablespoons of glycerin
2 tablespoons of baking powder
Optional- 1/4 teaspoon guar gum ( this will help bigger bubbles to hold together)
let it sit over night and you’ll be right to make some beautiful bubbles of your own.