Mexican Hot Chocolate Atole Champurrado

Ingredients (7)

• ✓ 2 cups water
• + 1 tablespoon ground cinnamon add to pantry
• + 1 Mexican hot chocolate drink tablet (such as Nestle® Abuelita®) add to pantry
• + ½ cup cold water add to pantry
• ✓ 2 tablespoons cornstarch
• + ½ (12 fluid ounce) can evaporated milk add to pantry
• ✓ ½ cup white sugar, or to taste