Vietnamese Glutinous Rice Balls (Chè Trôi Nước) For Lunar New Year

Ingredients

• ¾ cup roasted peanuts (unsalted)
• 5 tsp sugar
• 4 Tbsp unsalted butter (softened)
• 1 Tbsp water
• 1 pinch sea salt
• 1½ cups glutinous rice flour (plus more for dusting)
• ½ cup + 2 Tbsp water (adjust as needed)
• ½ Tbsp vegetable oil
• 3 Tbsp rock sugar (or dark brown sugar, to taste)
• 2 cups water
• 3–4 slices fresh ginger
• 1 pandan leaf bundle (tied into a knot)
• ¾ cup coconut milk (about 200 ml)
• 1 Tbsp sugar
• ¼ tsp salt
• 1 tsp cornstarch + 2 Tbsp water (cornstarch slurry for thickening)