Add water, whisk to combine.

Heat over medium heat, until everything is smooth and dissolved. Remove from heat.

Add flavour oils and citric acid, stir well to dissolve.

For Solid Colour Bottles:

Stir in gel food colouring of choice, then use a dropper to fill the gummy mold cavities with the gelatin mixture.

For 2 Colour Molds

Before getting started, arrange your bottle molds on a cookie sheet, with all of the bottle “tops” facing the same way.

Prop the other end - “bottom” of the bottles - of the cookie sheet up a bit. I use a measuring cup.

After adding flavour oils and citric acid, use red food colouring to tint the mixture as pink or red as you like.

Use a dropper to drop a small amount of the gelatin mixture into the top half of the molds, only allowing it to come halfway down the mold length, at an angle.

I like to set it at a steep enough angle that the very top of the bottle gets filled to the top of the mold with red gummy mixture, and extends halfway down the bottle (see photos in post).

For clear, distinct colours, you want the red gummy to set completely before proceeding. If it’s liquid at all, the colours will run.

Once set, warm the remaining gelatin mixture, then stir in some brown food colouring.

Set the cookie sheet on a flat surface - NOT raising one end of the sheet up - and use a dropper to fill each of the cavities with brown gelatin mixture.

Either Way:

Allow filled molds to sit at room temperature until set, or transfer to the fridge for faster setting.