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- All-purpose flour: 1 cup (125 g)
- Unsweetened cocoa powder: 1/3 cup (35 g)
- Granulated sugar: 1 cup (200 g)
- Brown sugar: 1/2 cup (100 g)
- Butter (unsalted): 1/2 cup (115 g), melted and slightly cooled
- Vegetable oil: 1/4 cup (60 ml)
- Eggs: 2 large
- Vanilla extract: 1 1/2 tsp
- Salt: 1/2 tsp
- Baking powder: 1 tsp
- Semi-sweet chocolate chips or chunks: 1/2 cup (90 g)
