Martinis are the ultimate cocktail for the fine liquor connoisseur. They are often seen at happy hours, parties and fancy nights out. If you want to be able to serve martinis at your next soiree, but don't want to feel trapped behind the bar all night making them for your guests, make them in bulk for people to pour for themselves.
Determine the amount of martinis you want to make. A typical martini is 2.5 oz of gin and ¼ oz dry vermouth. So if you wanted to make enough for 10 glasses, you would need 25 oz (3.125 cups) of gin and 2.5 oz (approximately .31 cups) of dry vermouth.
Combine the gin and vermouth in a large lidded container. Leave about 1 inch from the rim of the container. If you're like James Bond, you will likely want your martinis shaken instead of stirred. To combine the liquors by shaking, fit the lid securely in place and shake vigorously for 30 seconds. Otherwise, you can use a large mixing spoon to combine your martini.
Add in any fruit mixes or flavored liquors that you want to use to personalize your martini. How much fruit mix or liquor you use depends on your taste. For many recipes, use equal parts fruit syrup or flavored liquor and dry vermouth. There are hundreds of variations to choose from that can be found in bar guides or reference books, or you can come up with your own winning combination. After adding, shake or mix for 30 seconds.
Store the martini pitcher in a very cold refrigerator or cooler. With martinis, the gin is served very cold so it is common for martinis to be made in a shaker with ice and then filtered through the top of the shaker. Because you are making them in bulk, you will want to give them up to several hours to chill.
Pour the martinis into the glass one at a time. If you do not have a cooler or refrigerator to store the container in, each glass will need to be poured over ice until its cool and then strained into a glass before serving.
Keep garnishes for the martini nearby the serving station. This will allow drinkers to customize their drinks to their liking. For example, keep a tray with green olives and toothpicks nearby for guests to float in their martinis once they are poured. Other garnishes include cocktail onions, slices of lemon, lime, orange and maraschino cherries.