1. Gather your ingredients: To make vanilla Coke, you’ll need a can or bottle of your favorite Coca-Cola, pure vanilla extract, and some ice.

2. Prepare your glass: Find a tall glass that can accommodate at least 12 ounces of liquid. Fill the glass about halfway with ice cubes to keep your vanilla Coke chilled.

3. Pour the Coca-Cola: Open your can or bottle of Coca-Cola and slowly pour it into the glass over the ice cubes, filling it about two-thirds of the way full.

4. Add the vanilla extract: Drop 1/4 teaspoon of pure vanilla extract into the glass. This measurement may be adjusted to taste, adding more or less depending on how strong you want the vanilla flavor to be.

5. Stir gently: Using a long spoon, gently stir the Coca-Cola and vanilla extract until they are well mixed. Be careful not to stir too vigorously, as this may cause the soda to go flat.

6. Taste test: Take a sip of your homemade vanilla Coke to see if it has achieved your desired level of sweetness and vanilla flavoring. If needed, adjust the amount of vanilla extract and stir again to mix it in.

7. Optional garnish: If you want to make your vanilla Coke extra fancy, add a garnish like a cherry or an orange slice as a finishing touch.

8. Serve immediately: Enjoy your homemade vanilla Coke while it’s still cold and fizzy. Drinking it immediately will ensure that it remains at its best possible flavor and consistency.

9. Modify for a crowd: To make a larger batch of vanilla Coke for a party or gathering, simply multiply the ingredients proportionally for the number of servings required and mix carefully in a larger container like a punch bowl or pitcher.

10. Experiment with variations: Have fun trying different combinations by using various types of Coke (Diet Coke, Coke Zero, etc.) or alternative flavorings like almond, caramel, or hazelnut extract to put your unique twist on this classic beverage.