Kue Fudge Coklat Mudah

Bahan-bahan (12 porsi)

• 125 g / 4 oz dark chocolate chips ((Note 1))
• 100 g / 7 tbsp butter (, salted (or unsalted butter + 1/4 tsp salt))
• 1 1/4 cups white sugar (, caster / superfine best (Note 2))
• 1/4 cup oil ((vegetable, canola))
• 1 tsp vanilla extract
• 2 eggs (, at room temperature)
• 1/4 cup cocoa powder ((Note 3))
• 1 cup flour (, plain / all purpose (Note 4))
• 1 tsp baking powder
• 1 cup boiling hot water
• 1 tbsp coffee granules (, optional (Note 5))
• 1 cup heavy / thickened cream (, 30%+ fat (Note 6))
• 250 g / 8 oz dark chocolate chips ((Note 1))