Ingredients
1/4 cup unsweetened cocoa powder
2 tablespoons cornstarch
2 cups whole milk, plus more as needed
1/4 cup granulated sugar
3 ounces 70% dark chocolate, chopped
Instructions
Combine the cocoa powder and cornstarch:
Whisk together the cocoa powder and cornstarch in a medium bowl until well-mixed.
Heat the milk and sugar:
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