Sup Miso Bacon Asparagus

Bahan-bahan (4 porsi)

• 4 cups water
• 2 dashi packets
• 1 russet potato ((10 oz, 280 g))
• 6 asparagus spears ((4 oz, 130 g))
• 3 slices applewood smoked bacon
• 4 Tbsp miso ((any kind would work except for Hatcho or Saikyo miso; I used white miso today))
• 1 Tbsp unsalted butter ((divided; skip for vegan and use ground sesame seeds instead))