The red beans sandwiched in the middle of the cake are called honey red beans.

Generally, the red beans sandwiched in the middle of the cake are made of honey red beans. Red beans are made by boiling red beans and adding sugar.

Basic introduction

Acacia chinensis, also known as red bean, is a vine with thin stems and many branches. Pinnately compound leaves; leaflets 8-13 pairs, membranous, opposite, nearly oblong. The racemes are axillary, 3-8 cm long; the inflorescence axis is thick and short; the flowers are small and densely packed into a head shape; the calyx is bell-shaped, with 4 lobed calyx teeth and is covered with white strigose hairs.

The corolla is purple, the flag petal has a triangular handle, and the wing petals and keel petals are narrow. The pods are oblong, with leathery petals that will split when mature and contain 2-6 seeds; the seeds are oval, smooth and shiny, with about two-thirds of the upper part being bright red and the lower third being black. The flowering period is from March to June, and the fruiting period is from September to October.

It is a poisonous plant of the genus Acacia in the Fabaceae family and is widely distributed in tropical areas. The seeds contain a protein called abrine, which is highly toxic and can cause poisoning if ingested, and even death in severe cases. The seeds can be made into beaded ornaments and percussion instruments; Taiwanese folk also spread the practice of adding the stems to tea to add aroma.