Generally speaking, sweet soups that have beans in them will use brown rock sugar that is in slabs. They usually come in 400 g packages with 5 slabs. I used 2 slabs which I thought was a good sweetness but my mom found it too sweet. So, maybe start with 1 slab and keep adding until you find the right sweetness. You may serve with ice cream, grass jelly and/or shaved ice. Not recommended for pregnant women. Best not to be consumed on an empty stomach.
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