Ingredients:

• For the ganache filling:
• 1/2 cup heavy cream
• 3/4 cup dark chocolate chips
• For the macaron shells:
• 1 1/4 cups (100g) blanched almond meal
• 3/4 cup (80g) powdered sugar
• 1 tablespoon cocoa powder
• Distilled white vinegar, for cleaning the bowl
• 2 or 3 large (80g) egg whites, at room temperature
• 1/4 teaspoon cream of tartar
• 1/3 cup (80g) sugar