Vermouth Jus

Bahan-bahan (4 porsi)

• 2 tbsp / 30g unsalted butter
• 1 eschallot (, thinly sliced (aka French onion. US: shallot, Note 1))
• 3 tbsp dry vermouth ((Note 2))
• 2 cups homemade beef stock ((cannot use store bought, Note 3))
• 2 tbsp cream
• 1/8 tsp salt (, kosher/cooking (Note 4))
• 1/8 tsp black pepper (, finely ground)