Slow Cooker Hot Chocolate

Bahan-bahan (8 porsi)

• 1.5 quarts milk (full cream or 2%)
• 24 oz evaporated milk (or 2 cups heavy cream)
• 6 oz semi-sweet chocolate chips
• 1/2 cup unsweetened cocoa powder
• 1/2 cup white granulated sugar
• 1 pinch coarse salt (optional)
• 1 tablespoon pure vanilla extract
• 1 cup marshmallows (optional)