How we colour buttercream without food dye

Start with a pale base

Natural powders tint, they do not overpower. If your butter is still yellow, matcha turns swampy and beetroot turns salmon. Beat the butter on medium-high for a full three minutes until it looks almost white, then add the icing sugar.

Cold butter never gets there. Take it out 60–90 minutes ahead; it should dent under a finger but not feel greasy.

The ratios we use per 300 g of buttercream

Green: 1 teaspoon culinary matcha, sifted. Anything more and you taste the tannins.

Purple: 1 tablespoon freeze-dried blueberry powder plus a pinch of blackcurrant powder to stop it drifting grey.

Pink: 1 teaspoon beetroot powder. It looks alarming in the bowl and settles into a soft rose after ten minutes.

Let the colour rest

Every natural powder deepens as it hydrates. Mix, cover the bowl, and wait fifteen minutes before deciding whether to add more — most over-colouring happens in the first two minutes of impatience.

Beetroot pink fades in direct sunlight, so we frost party cupcakes the morning of, not the night before.