Japanese Higashi Dry Wagashi and Rakugan Sugar Confectionery Craft

Ingredients

• For the rakugan paste
• 200 g wasanbon sugar, Tokushima or Kagawa origin; sieved; substitute fine caster sugar only if unavailable — flavour and melt will differ
• 50 g joshinko (non-glutinous rice flour), sieved
• 15 ml water, added in drops; the paste must remain barely cohesive, not plastic
• For colouring
• as required gardenia extract, for yellow; diluted to a pale tone
• as required red perilla extract, for pink or red
• as required butterfly pea extract, for blue or purple
• as required matcha powder, for green; sieved fine before incorporating
• For the moulds
• as required rice flour, for dusting kigata wooden moulds; fine and dry

Method

1. 1
   Sieve the wasanbon and joshinko together into a wide, flat-bottomed bowl. Combine them thoroughly with the fingertips until the mixture is uniform and no lumps of flour remain. The combined mass should feel fine-grained and uniformly pale yellow from the wasanbon.
2. 2
   Add the water in drops — no more than 15 ml in total — working each addition into the mixture with the heel of the hand. This is where the dish lives or dies: the paste must reach a state of bare coherence, pressing into a firm shape when squeezed yet crumbling cleanly at the edges when released. Any further moisture will cause the surface to become tacky, prevent clean demoulding, and compromise the finished texture.
3. 3
   Divide the paste into portions according to the number of colours required. Incorporate each natural colourant — gardenia, red perilla, butterfly pea, or matcha — by kneading gently until the tone is even throughout. The palette should remain pale and restrained; synthetic colours are not used in high-end rakugan. The finished coloured portions should feel identical in texture to the uncoloured base.
4. 4
   Dust the carved recesses of the kigata wooden moulds lightly with dry rice flour, tapping out any excess. Press a portion of paste firmly into each mould recess, maintaining even pressure across the full surface for a full 30 seconds. This sustained press creates crisp edge definition; early release produces blurry pattern reproduction. The filled mould surface should be flush and matte, with no visible cracking.
5. 5
   Invert the mould sharply onto a clean board or tray to release each piece. The rakugan should fall cleanly, retaining the full depth and detail of the carved design — a minimum of 3 mm of relief. Pieces with blurred detail or cracked edges should be returned to the paste and re-pressed.
6. 6
   Arrange the demoulded pieces on a wire rack set over a baking tray. Place in an oven held at 70–80 °C for 2–3 hours. This gentle drying reduces moisture content to below 20% without damaging the natural colours or scorching the wasanbon. At the end of the drying period, the pieces should feel firm and completely dry to the touch — no give, no surface stickiness.
7. 7
   Allow the pieces to cool fully on the rack at room temperature before storing. Transfer immediately to an airtight container away from humidity. Higashi are hygroscopic and will soften and lose their texture within hours in a moist atmosphere. A properly finished rakugan dissolves over two to four minutes on the tongue, releasing concentrated, ethereal sweetness in a single, gradual movement.