Recipes are all over the internet and I suppose you could get ideas on ratios

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The tiramisu is a rich, tantalizing, and oh so luscious drink. Several liquers combine effortlessly with vanilla ice cream to form a positively distinguished libation. I came upon this recipe through a good friend who tends bar at a local restaurant, she was kind enough to pass it along, and now I'm passing it along to you. Enjoy!
1 oz. Amaretto Liquer
1 oz. Kahlua Liquer
1 oz. Godiva White Chocolate Liquer
6 oz. Milk
3 to 4 Scoops of Vanilla Ice Cream
5 Ice Cubes
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The Ultimate Tirimisu 1 part Starbucks Coffee Liqueur, 2 parts Absolut Vanilla Vodka, 1 part Almond-Flavored Liqueur. Serve in a rocks glass and top with whipped cream.
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Tirimisu
Makes 5 cocktails
1 cup milk chocolate ice cream topping or melted milk chocolate
5 large sugar cones
1 cup Torani tiramisu syrup
5 tablespoons rum
4 cups whipped cream, plus more for garnish
1 cup milk
Chocolate sprinkles, for garnish
Melt chocolate in a double boiler or carefully in the microwave until it is easily pourable. Pour chocolate into each of the cones, completely coating the inside. Pour any excess into the next cone until each is coated. Place cones upside down on a tray in the refrigerator until the chocolate hardens.
In a large bowl, fold tiramisu syrup, rum, whipped cream and milk together. Transfer to a measuring cup with a spout and fill each of the cones with the mixture. Stand cones upright in tall shot glasses or other stand and let the drink set for 15 minutes in the refrigerator.
When ready to serve, pipe a whipped cream peak on top of each cone and garnish with chocolate sprinkles. Serve with a bendable straw.
(From Chef Yvan-David Lemoine for Torani)
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Tiramisu
Veritable Quandary , Portland, OR
(
www.veritablequandary.com)
1 oz. coffee flavored liqueur
1/2 oz. Rum
1 shot of espresso
Shake with ice, strain
Pour into glass of choice, martini or other glass with stem preferred
Garnish with whipped cream.
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Tiramisu Cocktail
from Great Food Live
For a gloriously indulgent treat try Wayne Collins's delicious cocktail, inspired by Italian tiramisu
Servings: 1
Level of difficulty: Easy
Preparation Time: 10 minutes
Ingredients
50ml Cognac
25ml coffee liqueur
25ml chocolate liqueur
50ml single cream
2 tbsp Mascarpone
25ml sugar syrup
2 ice cubes, for shaking
Method
Place the Cognac, coffee liqueur, chocolate liqueur, cream, mascarpone cheese, sugar syrup and ice in a cocktail shaker and shake thoroughly.
Double-strain the cocktail into a martini glass and garnish with dark cocoa powder and sponge fingers drizzled with vanilla syrup.
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Irish Tiramisu
Ingredients: (Serves 2)
- 1/4 cup espresso
- 4 oz Baileys Original Irish Cream
- 1/3 cup mascarpone
- 2 scoops vanilla, chocolate or coffee ice cream
- 2 to 4 ice cubes
- 2 soft ladyfinger cookies sliced lengthwise or shortbread wafers
- Chocolate-hazelnut spread
- Chocolate syrup
Blend together espresso, Irish Cream, ice cream, mascarpone, ice cream and ice until smooth. Drizzle chocolate syrup along inside edges of oversized martini glasses. Pour mixture from blender into glasses. Spread a layer of chocolate-layzelnut spread in between the ladyfingers or sandwich between two shortbread cookies. Pass the cookies to dip in the cocktails. (Variation: Rim glass with chocolate syrup by dipping glass in a plate with chocolate syrup)